Colver G B, Beveridge G W
University Department of Dermatology, Royal Infirmary, Edinburgh, UK.
Clin Exp Dermatol. 1991 May;16(3):158-9. doi: 10.1111/j.1365-2230.1991.tb00335.x.
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.
一名40岁男性指甲出现多条纵向色素沉着条纹。他的姐姐也被发现一根指甲上有一条条纹。两人均无药物摄入史或近期患病史，检查未发现皮肤或黏膜表面有任何其他体征。对一条条纹底部的甲母质进行活检，未发现痣或雀斑样痣的证据，主要发现是色素失禁和巨噬细胞增多。
