The information provided on this page is for informational purposes only. The National Organization for Rare Disorders (NORD) does not endorse the information presented. The content has been gathered in partnership with the MONDO Disease Ontology. Please consult with a healthcare professional for medical advice and treatment.
A rare systemic mastocytosis characterized by the presence of at least 20% usually immature and atypical mast cells in bone marrow aspirate smears. In classic mast cell leukemia, mast cells account for at least 10% of peripheral white blood cells, although the aleukemic variant with less than 10% mast cells is more common. C-findings (cytopenias, hepatomegaly, ascites, portal hypertension, splenomegaly, skeletal lesions, malabsorption), indicative of organ damage due to mast cell infiltration, are usually present at diagnosis, while skin lesions are absent in most cases. Prognosis is generally poor.
The Genetic and Rare Diseases Information Center (GARD) has information and resources for patients, caregivers, and families that may be helpful before and after diagnosis of this condition. GARD is a program of the National Center for Advancing Translational Sciences (NCATS), part of the National Institutes of Health (NIH).
View reportOrphanet has a summary about this condition that may include information on the diagnosis, care, and treatment as well as other resources. Some of the information and resources are available in languages other than English. The summary may include medical terms, so we encourage you to share and discuss this information with your doctor. Orphanet is the French National Institute for Health and Medical Research and the Health Programme of the European Union.
View reportPlease complete this form to access the requested resource.
