Familial acquired pigmented streaks in the nail.
A 40-year-old man developed multiple longitudinal pigmented streaks in his nails. His sister was also found to have a single streak on a fingernail. Neither had any history of drug ingestion or recent illness and examination failed to reveal any other signs in the skin or mucosal surfaces. A biopsy of the nail matrix at the base of one streak showed no evidence of a naevus or lentigo, the principal finding being pigmentary incontinence and excess macrophages.
Colver
G B
GB
University Department of Dermatology, Royal Infirmary, Edinburgh, UK.
Beveridge
G W
GW
D000328:Adult; D001706:Biopsy; D005192:Family Health; D005260:Female; D006801:Humans; D008297:Male; D009260:Nail Diseases / Q000209:etiology* / Q000473:pathology; D010859:Pigmentation Disorders / Q000209:etiology* / Q000473:pathology