Secondary hypereosinophilic syndrome

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Secondary hypereosinophilic syndrome

Synonyms: HES-R | Reactive hypereosinophilic syndrome | Secondary HES

A rare hypereosinophilic syndrome characterized by hypereosinophilia produced by reactive/non-clonal eosinophils secondary to an underlying medical condition and persisting for at least six months. The disorder can derive from non-neoplastic conditions (such as chronic infections and infestations allergic reactions intoxications or autoimmune and chronic inflammatory disorders) or from neoplasms including non-myeloid malignancies among others. It is associated with signs of organ infiltration dysfunction and damage. Clinical manifestations are highly variable depending on the organ systems involved and most commonly include dermatologic pulmonary cardiac gastrointestinal and cerebral manifestations.

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 April 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

Clinical Trials

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