Glossary for Skin bumps

Medical terms related to Skin bumps or mentioned in this section include:

• Abdominal Cancer: Growth of abnormal cells (tumour) affecting the organs in the abdominal cavity; may be due to primary growth of a tumour or spread from another tumour (metastases, secondary tumour)
• Abscess: This is an area of puss collected in a cavity which is constituted by necrotised tissue
• Acne: Pimples and blackheads on the skin
• Acne Vulgaris: Another term for the common skin disorder called acne. Acne may occur just about anywhere on the body but is most common on the face, neck and back. The condition may be mild with just a few small spots or severe where large painful cysts develop. Acne generally results from dead skin blocking skin pores which results in infection.
• Acrospiroma: A tumor that develops in the ends of sweat glands in the skin. They are usually benign.
• Adult Fibrosarcoma: A malignant tumor that develops from fibroblasts (cells that produce connective tissue) and tends to occur in soft tissue or in areas surrounding bones. Adult fibrosarcoma tends to affect mainly deep soft tissue, trunk, head, neck and upper arms and legs. Symptoms are determined by the size and location of the tumor. The tumors are usually slow growing and can metastasize.
• Aleukemic leukemia cutis: A rare form of leukemia where the skin is involved before the leukemic cells appear in the blood. It is usually an early sign of leukemia.
• Allergic contact dermatitis: An allergic contact dermatitis is where the body's immune system causes a skin reaction in response to direct contact with an allergen. Symptoms usually only affect the skin directly in contact with the allergen but in severe cases, symptoms may spread around the contact site or even become widespread across the body.
• Anaplastic large cell lymphoma: A rare type of cancer where a tumor develops in lymph tissue and usually consists of white blood cells and null cells. It is a form of non-Hodgkin's lymphoma. The tumors can develop in more than one lymph node and can also occur in the skin and various organs such as the liver, bones or lungs.
• Anaplastic small cell lymphoma: A rare type of cancer where a tumor develops in lymph tissue and consists mainly of small cells. It is a form of non-Hodgkin's lymphoma. The tumors can develop in more than one lymph node and can also occur in the skin and various organs such as the liver, bones or lungs.
• Anthrax: A serious infectious bacterial disease that can be fatal.
• Arm lump: A palpable lesion located anatomically at or near the ankle joint
• Atopic dermatitis: Skin disorder characterized by chronic inflammation, and pruritis. Often hereditary and associated with allergic rhinitis and asthma.
• Atopic dermatitis 1: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 1 is linked to a defect on chromosome 3q21. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Atopic dermatitis 2: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 2 is linked to a defect on chromosome 1q21. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Atopic dermatitis 3: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 3 is linked to a defect on chromosome 20p. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Atopic dermatitis 4: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 4 is linked to a defect on chromosome 17q25.3. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Atopic dermatitis 5: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 5 is linked to a defect on chromosome 13q12-q14. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Atopic dermatitis 6: Atopic dermatitis is a skin disorder characterized by chronic inflammation and itching. Dry, red, itchy patches of skin tend to develop most often in the folds of the arms and knees, wrists, face and hands. Atopic dermatitis often runs in a family which means that a genetic anomaly may increase a person's susceptibility to developing the skin condition. Type 6 is linked to a defect on chromosome 5q31-q33. The genetic anomaly means that the patient is more susceptible to developing atopic dermatitis. The condition is often associated with hay fever and asthma.
• Autosensitization dermatitis: A skin reaction involving the development of a variety of skin lesions in response to infections (virus, bacteria, fungus, parasite), inflammatory skin conditions or other triggers. The skin reaction may vary considerable in appearance from itchy red skin to the development of blisters and may involve variable portions of the body.
• Basal cell carcinoma: Basal cell carcinoma is a slow-growing form of skin cancer.
• Blisters: Blistering of the skin.
• Body skin hyperlaxity due to vitamin K-dependent coagulation factor deficiency: A rare inherited connective tissue disorder caused by a deficiency of a blood coagulation factor.
• Boil: Infected puseous hair follicle on the skin
• Bubble bath allergy: An immune-mediated reaction to exposure to bubble bath solutions. Bubble bath allergy tends to be more common in children and symptoms can vary in nature and severity.
• Buffalo Hump: Fat accumulation on the back of the neck.
• Cancer: Abnormal overgrowth of body cells.
• Cataract, alopecia, sclerodactyly: A rare disorder characterized by cataracts, lack of hair and skin changes in the hands and feet.
• Cavernous hemangioma: A harmless proliferation of blood vessels which form a tumor-like mass of blood filled spaces which can occur anywhere in the body and is present at birth or develops soon after. It occurs in deeper layers of the skin as opposed to the top skin layers and the color may vary according to the depth of the lesion.
• Cercarial dermatitis: A short-lived rash that occurs as an allergic reaction to larval (cercariae) infection of the skin. These particular parasites use birds and animals as their first hosts. Larval eggs are excreted in the faeces and when they land in water, they hatch into larvae which then infect certain aquatic snails. The infected snails release another form of the larvae called cercariae which then search for a bird, mammal host. When they enter the skin of a human they die as humans are unsuitable hosts but the skin can produce an allergic reaction.
• Cleft upper lip, median - cutaneous polyps: A rare birth disorder characterized mainly by a cleft in the upper lip, central nervous system tumors and skin polyps.
• Condyloma: A type of wart transmitted through direct sexual contact and is caused by the human papilloma virus.
• Congenital hypotrichosis milia: A rare inherited disorder characterized by reduced hair from birth and the development of numerous milia which tend to disappear by adolescence. The milia occur on the face, chest, armpits and genital area.
• Contact dermatitis: Skin reaction to an irritant
• Cowden's syndrome: A rare hereditary condition characterized by multiple noncancerous nodules called hamartomas. Sufferers also face an increased risk of particular cancers.
• Cutaneous Anthrax: A skin infection caused by the spores of the anthrax bacteria called Bacillus anthracis. The infection occurs when the spores enter broken skin and result in a small red bump which blisters. The blister ruptures and forms a dark scab over dead tissue.
• Cutaneous mastocytosis: Skin mastocytosis
• Cyst: Fluid-filled lump under the skin often produced by over-secreting gland
• Cysticercosis: An infectious disease caused by the pork tapeworm Taenia solium. If the larvae are ingested then a mild or asymptomatic tapeworm infection occurs. However, ingested eggs pass into the bloodstream where they can then enter various tissues and form the cysts that characterize cysticercosis.
• Cysts: Fluid-filled lump under the skin often produced by over-secreting gland
• Davenport-Donlan syndrome: A very rare syndrome characterized mainly by deafness, white hair, contractures and papillomas.
• Demodicidosis: A parasitic infection caused by the Demodex mite (Demodex folliculorum and Demodex brevis) which normally live harmlessly in hair follicles especially on the facial area. The mite can cause symptoms in immunocompromised people.
• Dermatomyositis: A muscle disease characterized by chronic muscle inflammation resulting in progressive muscle weakness and a characteristic rash.
• Dermoid cyst: Benign cystic tumor often containing skin, hair, and other tissue
• Desmoid tumor: Benign tumors that occur in soft tissue and often develop in tendons, ligaments and tend to occur in the arms, legs and abdomen. The tumors are quite aggressive in that they are difficult to get rid of an though they aren't malignant, they can spread to surrounding tissue.
• Eczema: Skin rash usually from allergic causes.
• Environmental allergen related eczema: Environmental allergen related eczema is a form of eczema that results from exposure to an environmental allergen such as moulds, pollens or dust mite. Environmental allergens are more likely to cause allergic conditions such as hay fever and asthma but can cause eczema in some cases or exacerbate pre-existing cases. Eczema is a type of skin inflammation or irritation that manifests as a skin rash. The amount of skin involved may vary considerable from a single small patch to widespread across large areas of the body.
• Eosinophilic pustular folliculitis: A rare skin disorder characterized by the recurring development of characteristic skin papules and pustules.
• Erucism: Erucism is a skin reaction to envenomation from certain poisonous caterpillar spines. The reaction can be cause by contact with the spines or hairs of the caterpillar. Even airborne caterpillar hair can cause symptoms as can spines or hair on dead caterpillars.
• Erythema elevatum diutinum: A rare chronic skin disorder characterized by skin nodules and plaques near joints and on the back of the hands and feet.
• Erythema nodosum: Allergic skin condition usually on the legs
• FLOTCH syndrome: A very rare syndrome characterized mainly by kidney stones, completely white nails and cysts that form in oil producing areas of skin.
• Familial Eosinophilic Cellulitis: A relatively uncommon, recurring skin condition which is inherited and characterized by flame-shaped, raised, red skin lesions. The skin lesions usually blister and change color and resolve after a few weeks. One or more skin lesions may be present.
• Febrile Ulceronecrotic Mucha-Habermann disease: A very rare skin disease characterized by bleeding skin ulcers and fever. There is no obvious cause of the condition. The skin ulcers spread and can cover most of the body. Sepsis and death is more likely in adults.
• Follicular hamartoma - alopecia - cystic fibrosis: A rare syndrome characterized by small benign growths that develop in hair follicles, alopecia and cystic fibrosis.
• Folliculitis: An inflammatory reaction which occurs in the follicles
• Fucosidosis type II: A form of the biochemical disorder called fucosidosis where an enzyme deficiency (alpha-fucosidase) results in the accumulation of certain chemicals (glycosphingolipids) in the central nervous system and other body tissues. Symptoms start later and progress slower than in type I and is distinguished by warty skin growths.
• Fungal symptoms: Symptoms from various fungal infections
• Ganglion: swelling that arises around joints and soft tissues
• Gastrointestinal Basidiobolomycosis: Very rare intestinal infection
• Genital herpes: Sexually transmitted infection of the genital region.
• Genital warts: Skin warts in the genital regions.
• Gianotti-Crosti Syndrome: A skin condition characterized by the development of red skin bumps on the face, extremities and buttocks. The condition is self-limiting and usually resolves in about 3 weeks. The underlying cause is a viral infection such as Epstein-Barr virus, Coxsackie virus, parainfluenza virus, vaccine-related virus, cytomegalovirus and hepatitis B virus.
• Gout: Painful joints, most commonly the big toe.
• Guizar-Vasquez-Luengas syndrome: A rare inherited syndrome characterized by corneal dermoids and short stature.
• Hashimoto-Pritzker syndrome: A rare harmless skin disorder characterized by the accumulation of histiocytes (infection-fighting cells) in the skin which forms nodules. The condition occurs at birth or soon after and resolves spontaneously within a month.
• Heat rash: Skin rash due to hot and humid weather
• Hives: Specific type of skin rash
• Human Papillomavirus: Very common sexually transmitted disease causing genital warts and associated with certain cancers.
• Hypopigmented lesions in children:
• Impetigo: Contagious skin rash from bacteria
• Incontinentia Pigmenti: A rare genetic skin pigmentation disorder characterized by eye, teeth, bone, nail and hair malformations as well as central nervous abnormalities and mental deficiency.
• Infantile Fibrosarcoma: A tumor that develops from fibroblasts (cells that produce connective tissue) and tends to occur in soft tissue or in areas surrounding bones. Juvenile fibrosarcoma tends to have a much better prognosis compared to adult fibrosarcoma.
• Infantile myofibromatosis: A benign fibrous tumor that usually occurs in children or infants. The tumor is not cancerous but the location and size of the tumor can cause problems and even death in some cases if certain organs are involved. Tumors can occur in the skin, muscle, internal organs and bone.
• Insulin-resistance syndrome, type A: A syndrome characterized by insulin resistance resulting in distinctive skin lesions called acanthosis nigricans. It is the least severe form of insulin resistance.
• Irritant contact eczema: Irritant contact eczema is a form of eczema that occurs when an irritating substance comes into direct contact with the skin. Eczema is a type of skin inflammation or irritation that manifests as a skin rash. This form of eczema often occurs in occupational settings.
• Jadassohn-Lewandowsky syndrome: A rare, inherited disorder characterized by thickening of nails, white patches on mouth and anus(leukoplakia) and thickened hard skin on soles and palms.
• Kaposi sarcoma: A form of cancer caused by a type of herpesvirus that occurs mainly in the skin but may also affect the lymph nodes, internal organs and mucosal areas. There are four forms of the condition: Classical Indolent form, Endemic African KS, iatrogenic KS and acquired immunodeficiency syndrome-associated KS. Symptoms depend on the extent of internal organ and lymphatic system involvement.
• Kaposi sarcoma, Endemic African form: A form of cancer caused by a type of herpesvirus that occurs mainly in the skin but may also occur in lymph nodes, internal organs and mucosal areas. The classic type tends to occur mainly on the extremities and internal organ involvement is common in adults. An aggressive form of the condition occurs in children and also involves the lymph nodes. The condition is aggressive in children but fairly benign in adults. Symptoms depend on the extent of internal organ and lymphatic system involvement.
• Kaposi sarcoma, acquired immunodeficiency syndrome-associated form: A form of cancer caused by a type of herpesvirus that occurs mainly in the skin but may also occur in lymph nodes, internal organs and mucosal areas. The AIDS-associated form is aggressive and tends to occur mainly on the face, genitals and lower extremities with internal organs often being involved as well. Symptoms depend on the extent of internal organ involvement.
• Kaposi sarcoma, classical indolent form: A form of cancer caused by a type of herpesvirus that occurs mainly in the skin but may also occur in lymph nodes, internal organs and mucosal areas. The classic type tends to occur mainly on the lower legs but the lymph nodes and internal organs may rarely be involved. Symptoms depend on the extent of internal organ involvement.
• Kaposi sarcoma, iatrogenic form: A form of cancer caused by a type of herpesvirus that occurs mainly in the skin but may also occur in lymph nodes, internal organs and mucosal areas. The iatrogenic form tends to occur mainly on the lower legs but the internal organs are often involved as well. It generally affects immunosuppressed patients and can be aggressive or fairly benign. Symptoms depend on the extent of internal organ involvement.
• Keratosis: A localized thickening or overgrowth of the upper skin layer such as in a callus or wart.
• Lepidopterism: A systemic illness caused by contact with certain poisonous caterpillar spines or urticating hairs.
• Lewandowsky-Lutz dysplasia: A very rare skin disease involving a genetic susceptibility to the human papillomaviru. Scaly macules (flat pigmented skin lesion) and skin bumps develop on the skin, especially on the back of the hands. The condition carries an increased risk of skin cancer, especially in sun-exposed parts of the body such as the back of the hands. The warty growths can become very extensive and surgery may be needed to remove them.
• Limited cutaneous systemic sclerosis: A rare disorder that primarily affects the skin and blood vessels. It is characterized by calcified skin deposits (C), Raynaud syndrome (R), esophageal dysfunction (E), scleroderma of the fingers and toes(S) and telengiectasia - dilated blood vessels (T).
• Lip cancer: It is the main type of oral cancer. Cancer involving the lips
• Lipoid proteinosis of Urbach and Wiethe: A rare congenital lipoid storage disease where lipids, carbohydrates and proteins are deposited onto blood vessel walls and other tissues.
• Lipoma: Tumor of fat cells usually just under the skin
• Lubarsch-Pick syndrome: A rare disorder involving abnormal amyloid deposits in various parts of the body - heart, skin, muscles, stomach and intestines.
• Lump: Any type of lump on the skin or body areas
• Lutz-Lewandowsky: A very rare skin disease where scaly macules (flat pigmented skin lesion) and skin bumps develop on the skin, especially on the back of the hands.
• Lutz-Lewandowsky epidermodysplasia verruciformis: A very rare skin disease where scaly macules (flat pigmented skin lesion) and skin bumps develop on the skin, especially on the back of the hands. Patients tend to be prone to skin cancers.
• Lymphatic Obstruction: A blockage of the lymph vessels that drain fluid from body tissues and facilitate immune system cell movement through the body. Lymphatic obstruction can be caused by such things as tumors, surgery, injury and infection. Obstruction can be primary (as in the case of inherited conditions such as lymphatic hypoplasia) or secondary (as in the case of infection).
• Lymphoma: Any neoplastic disorder that occurs in lymphoid tissue
• Lymphomatoid Granulomatosis: A rare, progressive blood vessel disease where nodular lesions destroy blood vessels - lungs, skin and nervous system are mainly involved.
• MSBD syndrome: A rare form of osteosclerosis caused by a lack of calcium in the bones.
• Mansonella streptocerca infection: A parasitic nematode infection which occurs in West Africa and can be transmitted by mosquito bites. The adult worms tend to live in the skin and cause symptoms.
• Mastocytosis: A disorder where excessive amounts of mast cells proliferate in organs such as the skin, liver, bone, spleen and gastrointestinal tract. Mast cells occur in connective tissue and defend the body against disease by releasing histamine to stimulate the immune system.
• Melanoma: Melanoma is the most dangerous type of skin cancer. It is the leading cause of death from skin disease. It involves cells called melanocytes, which produce a skin pigment called melanin. Melanin is responsible for skin and hair color.
• Merkel cell cancer: A rapidly growing, aggressive form of skin cancer that occur on or just under the skin.
• Metachondromatosis: A rare genetic disorder characterized by the development of firm lumps in the hands and feet caused by bony outgrowhts. The growths regress and regrow in an unpredictable pattern.
• Methotrexate-associated lymphoproliferative disorders: Some patients develop lymphoproliferative disorders as a result of using methotrexate to treat autoimmune conditions.
• Mixed sclerosing bone dystrophy: A rare form of osteosclerosis caused by a lack of calcium in the bones.
• Molluscum contagiosum: Common wart-causing virus.
• Multicentric osteolysis - nodulosis - arthropathy: A rare syndrome characterized by joint disease, loss of bone mineral density and nodulosis.
• Multicentric reticulohistiocytosis: A rare condition characterized by the proliferation of histiocytes (immune cells) which causes destructive arthritis and skin nodules.
• Multiple fibrofolliculoma familial: A rare familial genetic disorder characterized by the development of numerous benign hair follicle tumors.
• Multiple keratoacanthoma, Ferguson-Smith type: A condition involving the development of a number of skin tumors which are invasive but regress spontaneously to leave only a pitted scar. The skin lesions tend to occur mostly on sun-exposed areas.
• Nephrogenic Fibrosing Dermopathy: A rare disorder characterized by thickening and hardening of the skin as well as other symptoms. The course of the disease may be mild or aggressive and occurs in patients with underlying disorders kidney disease.
• Neurofibroma: A benign tumor that originates from nerve cells. The tumors usually arise from nerves in the skin or just under the skin.
• Neurofibromatosis syndrome: A rare genetic disorder characterized by areas of increased and decreased skin pigmentation and the development of many non-cancerous nerve and skin tumors some of which may eventually become malignant.
• Neurofibromatosis type 3A: A rare genetic disorder characterized by areas of increased and decreased skin pigmentation and the development of many non-cancerous nerve and skin tumors some of which may eventually become malignant. The skin tumors tend to develop characteristically on the palms of the hands.
• Neurofibromatosis-Noonan syndrome: A rare disorder where the patients has symptoms of neurofibromatosis (nerve tumors) and Noonan syndrome (short stature, bleeding problems, heart defect, unusual facial features, skeletal anomalies, webbed neck).
• Nodulosis-arthropathy-osteolysis syndrome: A rare syndrome characterized by joint disease, loss of bone mineral density and nodulosis.
• Orf: A contagious viral skin disease contracted from infected sheep and goats. It results in painless vesicles that may become red, weeping sores which form a crust and then heal.
• Palindromic rheumatism: A rare disorder involving periodic inflammation in and around joints. Eventually, rheumatoid arthritis may develop if the condition persists.
• Papilloma: A benign nipple-like growth on the surface of skin or mucus membrane.
• Papular mucinosis: A rare skin disease characterized by small, pale, waxy bumps that occur mainly on the hands, face, neck and elbows. The bumps contain a substance called mucin which is a substance found in mucus. The condition may be localized or affected larger areas of skin and in some cases that papules may join together to form ridges.
• Paragonimiases - lung infection: Infection by a parasitic worm, Paragonimus westermani, which are a type of lung fluke which invade the lungs and other organs where they cause problems. Infection occurs through eating freshwater crabs and crayfish which have not been cooked sufficiently.
• Pemphigus and fogo selvagem: An autoimmune skin disease characterized by skin blisters and a burning sensation. It is endemic particularly in Brazil but may also occur in other countries.
• Persistent lump at site of injection:
• Pimples: Pimples or pustules on the skin.
• Pinta: A tropical American skin disease that only affects dark-skinned races. It is caused by an organism the causes thickening and loss of pigmentation of the skin.
• Primary Lymphatic Obstruction: A blockage of the lymph vessels from birth. Lymph vessels drain fluid from body tissues and facilitate immune cell movement through the body. Primary obstruction can be the result of underdeveloped or malformed lymph vessels.
• Primary biliary cirrhosis: Primary biliary cirrhosis is a chronic and progressive cholestatic disease of the liver.
• Primary cutaneous CD30-positive T-cell lymphoproliferative disorders: A form of primary T-cell lymphoma of the skin which is made up of CD30-positive anaplastic lymphoid cells. The condition generally has a very good prognosis with skin lesions usually regressing on their own though relapses can be frequent.
• Pseudoxanthoma elasticum, dominant form: A very rare dominantly inherited disorder affecting elastic tissues in the body. The skin, eyes and heart blood vessels can be affected.
• Pseudoxanthoma elasticum, recessive form: A very rare recessively inherited disorder affecting elastic tissues in the body. The skin, eyes and heart blood vessels can be affected.
• Puretic syndrome: A rare genetic condition characterized by skin tumors and enlarged gums as well as osteopenia and joint contractures. The condition is caused by the accumulation of hyaline in the skin and other tissues.
• Pustules: Small elevated pus containing lesion of the skin
• Pyoderma Gangrenosum: A rare inflammatory skin disorder characterized by small red bumps or blisters which eventually become ulcerated.
• Pyogenic granuloma:
• Rash: Rash of any type affecting the skin.
• Rheumatoid arthritis: An autoimmune inflammatory condition which primarily affects the joints
• River Blindness: Skin and eye infection caused by the helminth (worm) 'Onchocerca volvulus', transmitted via fly bites and usually seen only in parts of Africa, the Middle East and South America
• Roch-Leri mesosomatous lipomatosis: A rare inherited disorder characterized by the development of many small lipomas. The lipomas are present mainly on the trunk, upper thighs and forearms. They are generally harmless though sometimes painful and can be removed surgically.
• Rodent ulcer: Facial ulcer not actually related to rodents
• Rombo syndrome: A very rare syndrome characterized mainly by
• Rosacea: Inflammatory rash affecting cheeks, nose, forehead, chin
• Scabies: Mite infection of the skin common in institutions.
• Scleromyxedema: A rare connective tissue disorder which causes the skin to become progressively thick and hard. The severity of symptoms is variable with lungs and circulation affected in some patients. The degree of resulting disability, disfigurement and response to treatment is variable.
• Sebaceous cyst: Cyst producing sebum.
• Seborrheic keratosis: Thickening of the skin condition usually from age
• Seborrhoea: Excessive sebum production by the sebaceous glands.
• Secondary Lymphatic Obstruction: A blockage of the lymph vessels that occurs secondary to some other condition such as infection. Lymph vessels drain fluid from body tissues and facilitate immune cell movement through the body. Secondary lymphatic obstruction can be caused by such things as tumors, surgery, injury and infection.
• Seronegative Arthritis: Classification given to the group of joint conditions with similar features to rheumatoid arthritis, but affecting different joints and lacking the specific autoantibodies used to identify rheumatoid arthritis
• Sexually Transmitted Diseases: Various diseases spread by sexual contact.
• Shoulder dislocation: Dislocation of the shoulder joint.
• Skin Cancer: The occurrence of a malignancy that is located on the skin
• Skin Diseases, Viral: Any condition affecting the skin and caused by a virus. There is a range of viruses that can affect the skin in a number of ways – Epstein-Barr, Fifth disease, viral warts, shingles, measles and herpes.
• Skin bumps: Bumps or lumps on the skin.
• Skin cancer: The occurrence of a malignancy that is located on the skin
• Skin lump: The occurrence of a lump that is located on the skin
• Skin nodules: The occurrence of nodules that are located on the skin
• Skin problems: Any condition that affects the skin
• Skin symptoms: Symptoms affecting the skin.
• Skin tumors: Cancer of the skin; the most common type of cancer.
• Sneddon-Wilkinson disease: A rare chronic condition involving the development of blisters and pustules, usually on the trunk, armpits and flexural areas. It is often associated with conditions such as thyroid problems, lupus and rheumatoid arthritis. The condition tends to flare up for a few weeks and the clear up for months or years before recurring.
• Soap allergy: An immune-mediated reaction to exposure to soap. Soap allergy tends to be more common in children and symptoms can vary in nature and severity.
• Sores: Sores affecting the skin.
• Spider naevi: A lesion on the skin where there is a central red spot from which blood vessels radiate, whereby, when it is pressed the red disappears.
• Sporotrichosis: A fungal skin infection caused by the fungus Sporothrix schenckii. Usually only the skin is infected but bones, lungs and central nervous system can rarely be affected also. Transmission usually occurs through infection of a skin wound.
• Squamous Cell Skin Cancer: Aggressive skin cancer arising due to sun exposure; lesions are locally invasive to surrounding tissues and may metastasise
• Squamous cell carcinoma, cutaneous: A type of skin cancer that occurs mostly on sun-exposed areas of skin but can occur elsewhere on the skin as well as mucous membranes.
• Stress-related eczema: Stress-related eczema is chronic skin inflammation and irritation which is triggered by stress. The severity and extent of the skin involved is variable. Stress may trigger a flare up or may exacerbate existing eczema.
• Sun spots: Wart-like lumps from sun exposure
• Sunscreen allergy: An immune-mediated reaction to exposure to sunscreen. Sunscreen allergy tends to be more common in children and symptoms can vary in nature and severity.
• Syphilis: A sexually transmitted disease caused by a bacteria (Treponema pallidum). The condition is often asymptomatic in the early stages but one or more sores may be present in the early stages. Untreated syphilis usually results in remission of visible symptoms but further severe damage may occur to internal organs and other body tissues which can result in death.
• T-cell lymphoma 1A: T-cell lymphoma 1A is a type of cancer that has genetic origins. The genetic defect is located on chromosome 14q32.1. The anomaly is usually implicated in t-cell prolymphocytic leukemia. The cancer is usually aggressive and tends to target the blood, bone marrow, lymph nodes, liver, spleen and skin. The cancer is generally quite rare and tends to occur in people over the age of 30.
• Temperature-related eczema: Temperature-related eczema is chronic skin inflammation and irritation which is triggered by changes in temperature, excessive heat, excessive cold or humidity extremes. The severity and extent of the skin involved is variable. Excessive temperatures may trigger a flare up or may exacerbate existing eczema.
• Trichofolliculoma: A benign hair tumor which looks like a small lump with a tuft of hair growing out of it. The hair is often white and short. They often occur around the nose area.
• Tuberous sclerosis: A rare genetic disorder characterized by harmartomatous skin nodules, seizures, phakomata and bone lesions.
• Urticaria, Cholinergic: A skin rash caused by an abnormal reaction to body heat. The hypersensitivity reaction can be triggered by heat, emotional stress and exercise. Heat triggers may include heat from the sun, hot showers and spicy foods.
• WHIM syndrome: A rare syndrome characterized by warts, hypogammaglobulinemia (low blood gammaglobulin levels), recurring bacterial infections and myelokathexis (form of neutropenia). It is a form of immunodeficiency disease caused by a mutation in a chemokine receptor.
• Wart: Wart growths on the skin or genital area.
• Warts: Wart growths on the skin or genital area.
• Wegener's granulomatosis: A rare disease involving blood vessel inflammation which can affect the blood flow to various tissues and organs and hence cause damage. The respiratory system and the kidneys are the main systems affected.
• Wells syndrome: A rare disorder affecting the skin and characterized by a flame-shaped patch of raised red skin which eventually undergoes changes such as blistering and altered color.
• Yaws: A rare infections disease caused by the spiral-shaped bacteria Treponema pertenue. The disease consists of three phases: skin lesions are followed by bone, joint and widespread skin symptoms and finally by inflammation and destruction of cartilage in the nose, pharynx and palate. Transmission can be through direct contact with infected skin, insect bites or sex.

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