甲床黑素瘤(Nail bed melanoma, NBM)罕见,大约占所有黑素瘤病例的1～3%.它有特殊的临床和病理特征,是一种独立的疾病.从1973到1983年在作者工作单位中共治疗恶性黑素瘤348例,其中NBM病人6例(1.7%),4例女性,2例男性.年龄最小58岁,最大73岁.5个损害发生在足趾,3个在大拇趾甲床,1例在第3趾,1例在第4趾的甲床,第6个位于大拇指甲床.2例甲床 Nail bed melanoma (NBM) is rare and accounts for approximately 1-3% of all cases of melanoma. It has special clinical and pathological features and is an independent disease. From 1973 to 1983 The author’s work unit treated 348 cases of malignant melanoma, including 6 cases (1.7%) of NBM patients, 4 females, 2 males, youngest 58 years old and maximum 73 years old. 5 lesions occurred in the toe and 3 in the Big toe bed, 1 case in the 3rd toe, 1 case in the 4th toe bed, 6th in the nail bed. 2 cases in the nail bed