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小肠、直肠、肛管的原发性恶性黑色素瘤较少见。据《中国外科年鉴》记载 ,截止 1987年 ,我国文献中共有 10 1例[1] ,近几年有少数报道。现就我院活检标本中所遇到的9例 ,通过组织病理学超微结构及免疫组化进行观察 ,并探讨有关黑色素瘤细胞的来源问题。1 材料和方法我院 1976
Small intestine, rectum, anal canal primary malignant melanoma is rare. According to “China Surgical Yearbook” records, as of 1987, a total of 101 cases in our literature [1], a few reports in recent years. In our hospital biopsy specimens encountered in 9 cases, observed by histopathological ultrastructure and immunohistochemistry, and to explore the source of melanoma cells. 1 Materials and Methods Our hospital 1976