Archives of dermatology 1984-Jul
Bypass phrynoderma. Vitamin A deficiency associated with bowel-bypass surgery.
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A 41-year-old woman had multiple keratotic papules and nodules on the trunk and extremities four years after a bowel-bypass procedure for morbid obesity. The microscopic features were those of a perforating folliculitis. Serum vitamin A levels were extremely low. Oral vitamin A therapy resulted in dramatic improvement of the cutaneous lesions.