Idiopathic and L-tryptophan-associated eosinophilic fasciitis before and after L-tryptophan contamination.


Recently, a causative association has been made between the ingestion of levotryptophan (L-tryptophan) and the eosinophilia-myalgia syndrome (EMS), a new entity manifested by peripheral blood eosinophilia, myalgias, constitutional symptoms, and cutaneous edema with fibrosis. Contaminated levotryptophan preparations produced at a single manufacturing company… (More)


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