title: Melanonychia striata longitudinalis: multiple benign pigmented streaks in a Caucasian.
abstract: Melanonychia striata, longitudinalis, or a pigmented longitudinal melanocytic streak of the nail, is distinctly uncommon in white patients. Such a finding is highly suggestive of a malignant melanoma. Reported herein is the first case report of a Caucasian with multiple pigmented streaks of the nail, the biopsy of one nail showing a lentigo.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D006801:Humans; D007911:Lentigo / Q000473:pathology; D008297:Male; D008544:Melanocytes / Q000473:pathology; D009260:Nail Diseases / Q000473:pathology*; D009262:Nails / Q000473:pathology*; D010859:Pigmentation Disorders / Q000473:pathology*