过去认为横纹肌肉瘤恶性度高,预后差,但由于治疗方法的改变,无病期和治愈率有了增加。目前常用的病理分类有:1,葡萄状(胚胎病变的变种),镜下呈明显水肿和粘液瘤样外形,常见于青年和成人;2,蜂窝状;3,多形状。这两种在镜下常重叠。横纹肌肉瘤仍常误诊为分化不良腺癌、网状细胞肉瘤、神经母细胞瘤、滑液细胞肉瘤或未分类肉瘤。 In the past, rhabdomyosarcoma was considered to have a high degree of malignancy and a poor prognosis. However, due to changes in treatment methods, the disease-free period and the cure rate increased. Currently used pathological classification are: 1, grape-like (variety of embryonic lesions), the microscope was marked edema and myxoid appearance, common in young adults and adults; 2, honeycomb; 3, multi-shape. Both of these often overlap under the microscope. Rhabdomyosarcoma is still often misdiagnosed as poorly differentiated adenocarcinoma, reticular cell sarcoma, neuroblastoma, synovial cell sarcoma, or unclassified sarcoma.