A disorder characterized by episodes of swelling under the skin (angioedema) and an elevated number of the white blood cells known as eosinophils (eosinophilia). During these episodes, symptoms of hives (urticaria), fever, swelling, weight gain and eosinophilia may occur. Symptoms usually appear every 3-4 weeks and resolve on their own within several days. Other cells may be elevated during the episodes, such as neutrophils and lymphocytes. Although the syndrome is often considered a subtype of the idiopathic hypereosinophilic syndromes, it does not typically have organ involvement or lead to other health concerns.
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pulmonary eosinophilia
MONDO:0004802
disseminated eosinophilic collagen disease
MONDO:0004803
eosinophilia-myalgia syndrome
MONDO:0004941
idiopathic hypereosinophilic syndrome
MONDO:0011895
primary hypereosinophilic syndrome
MONDO:0017833
secondary hypereosinophilic syndrome
MONDO:0017834