title: Eosinophilic fasciitis associated with L-tryptophan ingestion.
abstract: A 62 year old woman taking L-tryptophan developed eosinophilic fasciitis shortly after starting an exercise class. She received prednisone without benefit but improved after azathioprine treatment was started and L-tryptophan was discontinued. As products containing L-tryptophan have recently been implicated in development of the eosinophilia-myalgia syndrome it is suggested that the use of L-tryptophan might have contributed to the development of eosinophilic fasciitis in this patient. Similarities with toxic oil syndrome are noted. Additional studies are warranted to determine the prevalence of L-tryptophan ingestion among patients diagnosed as having eosinophilic fasciitis.
authors.affiliation: University of California, Davis, School of Medicine.
authors.forename: M E
authors.initials: ME
authors.lastname: Hamilton
mesh_terms: D001132:Arm / Q000473:pathology; D004802:Eosinophilia / Q000139:chemically induced* / Q000473:pathology; D005208:Fasciitis / Q000139:chemically induced* / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D014364:Tryptophan / Q000009:adverse effects*
chemical_list: D014364:Tryptophan