Segmental neurofibromatosis.

A 74-year-old man presented with skin-colored nodules in his left antecubital fossa. The lesions had been present for 35 years and were asymptomatic. Nodules elsewhere on the body, cafe-au-lait spots, axillary freckling, and Lisch nodules were absent. No family members had similar nodules. A diagnosis of segmental neurofibromatosis was made, and a biopsy specimen of a nodule showed a neurofibroma. As the patient had no complications of neurofibromatosis 1, no treatment was needed.