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黑色素棘皮瘤是一种少见的良性肿瘤,文献报导仅18例。本文报告一例,女性,87岁,自1967年起在右背部有一9×12毫米,稍隆起的色素沉着性损害,周围凸起,中央复有结痂,有时出血。1970年电凝固治疗后复发,1971年外科切除。此肿瘤一般发生于55岁以后,男女无差异均可受累,损害好发于头面部及颈部。临床常诊断为脂溢性角化,偶有误诊为恶性黑色素瘤、色素沉着性基底细胞瘤、色素痣、良性或恶性雀斑状痣等。
Melanotic acanthosis is a rare benign tumor, and only 18 cases have been reported in the literature. This article reports an example of a woman, 87 years old, who has a 9 × 12 mm in the right back since 1967, with slightly elevated pigmentation damage, raised peripheries, scabs at the center, and sometimes bleeding. After 1970 electrocoagulation treatment recurred, surgical resection in 1971. This tumor usually occurs after the age of 55. No difference between men and women can be involved. The damage occurs in the head, face and neck. Seborrheic keratosis is often diagnosed clinically, and occasionally misdiagnosed as malignant melanoma, pigmented basal cell tumor, pigmented nevus, benign or malignant freckles, etc.