对死于黑色素瘤的尸体解剖,发现约60%的病人有胃肠道转移,多数转移限于迴肠、胃,结肠很少受累.除了消化道本身原发肿瘤之外,一般认为黑色素瘤是迴肠转移灶的最主要的肿瘤. For necropsy that died of melanoma, it was found that about 60% of patients had gastrointestinal metastases, most metastases were limited to the ileum and stomach, and the colon was rarely involved. In addition to the primary tumors of the digestive tract itself, melanoma is generally considered to be Intestinal metastases the most important tumor.