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本文对１６例恶性黑色素瘤（后称恶黑）的临床病理和随访结果分析显示：下肢和足底是恶黑的好发部位。有黑痣者占３４．２％。肿块色调深浅与表皮内异型黑色素细胞增生程度有对应关系。外伤及长期慢性磨擦刺激等因素，可促发恶性变，故早期预防切除尤为必要。直肠肛管区恶黑发病隐袭，初期诊断困难，易延误治疗。通过随访，重点分析了不同部位恶黑的形态特点与预后和存活期的关系。对发病特点、临床表现及诊断治疗亦作了探讨。
In this paper, the analysis of clinical pathology and follow-up results of 16 cases of malignant melanoma (hereinafter referred to as evil black) showed that the lower limbs and the soles of the feet are the predilection sites for nasty black. There are 34.2% who have black cockroaches. There is a corresponding relationship between the degree of shade of the mass and the degree of hyperplasia of the heterogeneous melanocytes in the epidermis. Traumatic and long-term chronic friction stimulation and other factors can promote malignant transformation, so early prevention of resection is particularly necessary. The anal canal in the rectal anal canal is insidious and difficult to diagnose at the initial stage. It is easy to delay treatment. Through follow-up, the relationship between the morphological characteristics, prognosis, and survival period of different sites of malignant black was analyzed. The characteristics of the disease, clinical manifestations, and diagnosis and treatment were also discussed.