Causes of Paronychia
Causes of Paronychia (Diseases Database):
The follow list shows some of the possible medical causes of Paronychia
that are listed by the Diseases Database:
Source: Diseases Database
Paronychia Causes: Book Excerpts
Paronychia as a symptom:
Conditions listing Paronychia
as a symptom may also be potential underlying causes of Paronychia.
Our database lists the following as having
Paronychia as a symptom of that condition:
Related information on causes of Paronychia:
As with all medical conditions,
there may be many causal factors.
Further relevant information on causes of Paronychia may be found in:
Causes of Paronychia: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the causes of Paronychia.
Nail Disorders:
Differential Diagnosis
(In a Page: Signs and Symptoms)
- Onychomycosis
–Very common cause of nail thickening,
yellowing, and subungual debris
–Due to a dermatophyte infection
–May affect one or all fingers and toenails
–Patients often have coexisting tinea pedis or
tinea manum
- Psoriasis
–More than 50% of patients with psoriasis have associated nail changes, including pits, “oil spots,” and onycholysis
–Distinguishing nail fungus from psoriasis can be very difficult on clinical exam
–Most patients with nail disease have some other skin manifestation of psoriasis (plaques of thick, silvery white, adherent scalp scale that overlies well-demarcated patches of erythema)
- Paronychia
–Tenderness, erythema, and peeling around
the nail
–Very common and exquisitely painful
–Often exacerbated by “wet-work” (e.g.,
dishwasher)
–May have bacterial and/or yeast (candida)
component
–Occurs after minor cuticular trauma
–Can cause nail dystrophy without treatment
- Nail trauma
–Very common, especially great toenails and
thumbnails
–Easily misdiagnosed as fungal disease
–Can cause separation of the nail from the
nail plate
-
Malignancy (e.g., subungual melanoma, squamous cell carcinoma)
-
Endocrine disease (e.g., hyper- and hypothyroidism) can cause splitting, drying, and other nail changes
-
Lichen planus and atopic eczema can affect the nail matrix and lead to nail dystrophy
-
Alopecia areata (patchy autoimmune hair loss) can be associated with nail pits as well
-
Several congenital disorders (e.g., ectodermal dysplasia) can cause nail dystrophy in association with other skin and systemic disorders
-
Spoon-shaped nails may indicate iron deficiency
» READ BOOK EXCERPT ONLINE »
Source: In a Page: Signs and Symptoms, 2004
Nail Phenomena/Clubbing:
Differential Overview
(Field Guide to Bedside Diagnosis)
Phenomena
❑ Pitting
❑ Transverse depression
❑ Transverse white line
❑ Nailfold telangiectasias
❑ Nailfold infarcts
❑ Splinter hemorrhages
❑ Onycholysis
❑ Spoon nails
❑ Blue-green nails
❑ White nails
❑ Half-and-half nails
❑ Yellow nails
❑ Blue lunulae
❑ Red lunulae
❑ Black longitudinal streak
Clubbing
❑ Bronchogenic cancer
❑ Tuberculosis
❑ Endocarditis
❑ Inflammatory bowel disease
❑ Familial
❑ Trauma
❑ Grave disease
❑ Cirrhosis
❑ Cystic fibrosis
❑ Cyanotic congenital heart disease
❑ Pulmonary fibrosis
❑ Mediastinal Hodgkin disease
❑ Mesothelioma
❑ Lung abscess
❑ Bronchiectasis
❑ Hypertrophic osteoarthropathy
❑ Pachydermoperiostosis
» READ BOOK EXCERPT ONLINE »
Source: Field Guide to Bedside Diagnosis, 2007
Cellulitis:
Cellulitis - pathophysiology
(The 5-Minute Pediatric Consult)
Most commonly due to local trauma with breaches in the integument (abrasions, lacerations, bite wounds, excoriated dermatitis, varicella, etc.)
- May develop secondary to local invasion or infection (e.g., sinusitis leading to orbital cellulitis)
- Hematogenous dissemination (rarely)
Cellulitis - etiology
- S. aureus
- Group A—hemolytic streptococci (S. pyogenes)
- S. pneumoniae: Less common since the advent of childhood vaccination with heptavalent pneumococcal conjugate vaccine (Prevnar)
- Group B streptococci (GBS), Gram-negative rods (GNR’s): neonates
- HIB: Rare, due to childhood immunization
- Pseudomonas aeruginosa, anaerobic bacteria: Immunocompromised children
- Pasteurella species: From cat and dog bites
- Eikenella corrodens: From human bites
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
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Symptoms of Paronychia
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