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肉瘤是由间叶组织发生的恶性肿瘤,人体各部都有发生不同类型肉瘤之可能。但是发生在大肠、肛门的肉瘤较少见,某种类型的肉瘤更属罕见。我院病理科集15年收检的肛门、大肠恶性肿瘤的根治标本共1735例,其中肉瘤仅为31例。与大肠癌例数之比为55.5:1。故其肉瘤极易被人们所忽视与误诊。本文报道的肛门大肠肉瘤包括:平滑肌肉瘤27例,男13例,女14例,年龄26~82岁,平均51.4岁。血管内皮细胞肉瘤1例,男,34岁。恶性组织细胞瘤1例,男,64岁。胚胎性横纹肌肉瘤2例均为女性,年龄分别为23岁及27岁。本文讨论了上述4种不同类型的肛门大肠肉瘤的发生、发展及病理与临床表现及诊断要点。
Sarcoma is a malignant tumor that occurs in the mesenchymal tissue. There is a possibility that different types of sarcoma occur in various parts of the human body. However, sarcomas that occur in the large intestine and anus are less common and certain types of sarcomas are rarer. The Department of Pathology of our hospital collected a total of 1735 cases of anal and colorectal malignancies for 15 years, of which only 31 cases were sarcomas. The ratio to the number of colorectal cancers was 55.5:1. Therefore, its sarcoma is easily overlooked and misdiagnosed. The anal colorectal sarcoma reported in this article includes: leiomyosarcoma in 27 cases, 13 males and 14 females, aged 26 to 82 years, with an average of 51.4 years. Vascular endothelial cell sarcoma in 1 case, male, 34 years old. Malignant histiocytoma 1 case, male, 64 years old. Embryonic rhabdomyosarcoma was female in 2 cases, aged 23 and 27, respectively. This article discusses the occurrence, development, pathology, clinical manifestations, and diagnostic points of the above four different types of anal colorectal sarcoma.