What is Mastocytosis?

What is Mastocytosis?

• 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.
• Mastocytosis: A heterogeneous group of disorders characterized by the abnormal growth and accumulation of mast cells in one or more organ systems. Recent data suggest that most variants of mastocytosis are clonal disorders. (WHO, 2001) -- 2003
  Source - Diseases Database

Mastocytosis is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Mastocytosis, or a subtype of Mastocytosis, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

Mastocytosis: Introduction

Types of Mastocytosis:

Types of Mastocytosis:

• Cutaneous mastocytosis
• Systemic mastocytosis
• Diffuse mastrocytosis
• Mastocytoma
• Urticaria pigmentosa
• Telangiectasia perstans
• more types...»

How many people get Mastocytosis?

Prevalance of Mastocytosis: rare
Prevalance of Mastocytosis: mastocytosis generally has been considered to be an "orphan disease." (Orphan diseases affect 200,000 or fewer people in the United States.) (Source: excerpt from Mastocytosis, NIAID Fact Sheet: NIAID)

How serious is Mastocytosis?

Prognosis of Mastocytosis: The condition is generally harmless but may cause discomfort.
Complications of Mastocytosis: see complications of Mastocytosis

What causes Mastocytosis?

Causes of Mastocytosis: see causes of Mastocytosis

What are the symptoms of Mastocytosis?

Symptoms of Mastocytosis: see symptoms of Mastocytosis

Complications of Mastocytosis: see complications of Mastocytosis

Onset of Mastocytosis: usually childhood

Mastocytosis: Testing

Diagnostic testing: see tests for Mastocytosis.

Misdiagnosis: see misdiagnosis and Mastocytosis.

How is it treated?

Treatments for Mastocytosis: see treatments for Mastocytosis
Prevention of Mastocytosis: see prevention of Mastocytosis
Research for Mastocytosis: see research for Mastocytosis

Name and Aliases of Mastocytosis

Main name of condition: Mastocytosis

Mast cell disease, cutaneous mastocytosis, systemic mast cell disease, SMCD

Urticaria pigmentosum Source - Diseases Database

Pediatric mastocytosis (type), SMCD, Systemic mast-cell disease, Mast cell disease, Indolent systemic mast cell disease (type)
Source - Office of Rare Diseases (ORD) of the National Institutes of Health (NIH)

Research the causes of these diseases that are similar to, or related to, Mastocytosis:

• Mast cell leukemia
• Mast cell lymphoma
• Anaphylaxis
• Malabsorption
• Bronchitis
• Rhinitis
• Conjunctivitis
• Urticaria pigmentosa

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