肛管恶性黑色素瘤,又称黑色素癌,很少见,我院遇到两例,现报告如下。1.病例介绍 例1,女,59岁,粘液样便8个月,便条变细4个月,伴便后肛门疼痛一个月,于1994年9月4日入院。胸膝卧位查肛管,于3点至9点处,能触及半圆形不正形的鸡蛋大肿物一个,表面凹凸不平,触及易出血,中等硬度,活动度差,右侧腹股沟有一蛋黄大淋巴结,有压痛。心肺肝脾未见异常。临床诊断:直肠癌。于1994 Malignant melanoma of the anal canal, also known as melanoma, is rare. Our hospital encountered two cases. The report is as follows. 1. Case introduction Example 1, female, 59 years old, with mucoid stools for 8 months, notes thinning for 4 months, postpartum anal pain for one month, admitted to hospital on September 4, 1994. The anal canal was examined on the chest and knees, and from 3 to 9 o’clock, a semi-circular irregular large egg mass could be touched. The surface was uneven, with easy bleeding, moderate hardness, poor activity, and an egg yolk in the right inguinal region. Large lymph nodes, tenderness. Cardiopulmonary liver and spleen no abnormalities. Clinical diagnosis: rectal cancer. In 1994