Chronic eosinophilic leukemia

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A rare myeloproliferative neoplasm characterized by a clonal proliferation of eosinophilic precursors with persistent increase of eosinophils in peripheral blood and bone marrow accompanied by increased blasts (<20%) or clonal cytogenetic or molecular genetic abnormalities. Cases with BCR-ABL1 PCM1-JAK2 ETV6-JAK2 or BCR-JAK2 fusion or rearrangement of PDGFRA PDGFRB or FGFR1 are not included in this entity. Infiltration of the liver and spleen as well as a variety of other organs is typical. Patients may present with constitutional symptoms and signs and symptoms of organ involvement such as endomyocardial fibrosis peripheral neuropathy central nervous system manifestations respiratory symptoms or rheumatological findings. Acute transformation is common.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version June 2024

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Advocacy Organizations

My Faulty Gene

My Faulty Gene is a nonprofit organization which provides information and assistance to any individual whose family medical history suggests genetic testing might be helpful in identifying an increased risk of disease due to a genetic mutation. We believe that everyone in need of genetic testing should have access to it.

My Little Sunshine Foundation

My Little Sunshine is a non-profit foundation dedicated to educating people about the importance of fertility preservation and making fertility resources accessible to all.


Educate and provide resources to POC with Rare Cancers

Youth And Women for Opportunities Uganda-YWOU

Our mission supports Rare, orphan and undiagnosed diseases diagnosis, care and treatment, education, awareness and empowering health care professionals and patients care takers of rare, orphan and undiagnosed diseases arena in Uganda, build capacity and bridge lack of clinical knowledge and experience and provide search/quest for diagnostic laboratories, I advocate for changes in laws, practices

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Clinical Trials

For a list of clinical trials in this disease area, please click here.