6例透明细胞肉瘤的临床病理及免疫组化观察

Clinicopathological and Immunohistochemical Study of 6 Cases of Clear Cell Sarcoma

对6例罕见的透明细胞肉瘤作了光镜和免疫组化观察。光镜下瘤细胞呈多边形,胞界不清,胞浆丰富透明、含PAS阳性物。核大,空泡状,核仁大。瘤细胞聚集成条索状或片块状,由纤维组织分隔。6例均表现为NF、NSE、S-100、α_1-AT、Lysozyme阳性和Fibronectin、Vimentin、Desmin、Cytokeratin、CEA阴性。我们的资料支持该瘤起源于神经嵴的观点。

The clinicopathologic and im-munohistochemical features of 6 cases of clear cell sarcoma were discribed. The tumor cell tended to be polygonal and round with plenty of clear cytoplasm, a few PAS positive granules, a large bubbly nucleus and a large mucleole. The cells were arranged in strands and nests displaying uncertain cell-cell bordors. All of 6 cases showed positive reaction with antibodies of s-100 protein, NF, NSE, a-AT, lysozyme, but negative reaction with antibodies of FN, CEA, vimentin, desmin, cytokeratin. The immunohistochemical results support the neural crest origin of this tumor.