Abstract
Scleroderma developed in six women who were taking L-tryptophan. Fasciitis and morphea were most common, but one patient had pleural effusion, hypertension, and signs of cardiac and kidney failure. In five patients the biopsy findings were characteristic of scleroderma; the sixth patient had Crohn's disease and developed fasciitis; her biopsy specimen showed inflammatory arteritis. All patients' conditions improved after cessation of their L-tryptophan intake, initiation of corticosteroid therapy, or both. These findings confirm previous data that show altered tryptophan-kynurenine metabolism in some patients with scleroderma and fasciitis, particularly with tryptophan loading.
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