软组织肿瘤是一个较大的异质性肿瘤类群,在软组织肿瘤的组织病理学诊断中常存在不容忽视的疑点而难确诊。例如,任何具有来分化小圆细胞表型的肉瘤都有可能是尤文氏肉瘤、周围原始神经外胚层瘤、腺泡型横纹肌肉瘤、淋巴瘤或者神经母细胞瘤。恰当地应用免疫组化、电镜等辅助诊断技术常有助于解决确诊问题,但这些技术也有其内在的局限性。大量细胞遗传学研究表明。所有软组织肿瘤、特别是肉瘤,均存在克 Soft-tissue tumors are a large group of heterogeneous tumors. In the histopathological diagnosis of soft-tissue tumors, there are often doubts that can not be ignored and difficult to diagnose. For example, any sarcoma with a differentiated small round cell phenotype may be Ewing’s sarcoma, peripheral primitive neuroectodermal tumor, alveolar rhabdomyosarcoma, lymphoma, or neuroblastoma. Appropriate application of immunohistochemistry, electron microscopy and other auxiliary diagnostic techniques often help resolve the diagnosis, but these techniques also have their inherent limitations. A large number of cytogenetic studies have shown. All soft tissue tumors, especially sarcomas, are present in grams