Galil-Ogly G A, Karmilov V A, Normanskiĭ V E
Arkh Patol. 1986;48(7):69-74.
Epithelioid sarcoma is a rare soft tissue tumour. Small-nodular structure, necrotic foci in the centre of tumour nodes, moderate lymphocytic infiltration are characteristic histologic features of this tumour. Majority of tumour cells have the appearance of epithelioid histiocytes. Some tumour cells are found in small cavities resembling hyalin cartilage lacunes. Signs of a synovial, fibroblastic and histiocytic differentiation are observed ultrastructurally in the epithelioid sarcoma cells On the basis of the literature analysis and their own ultrastructural data the authors conclude that there should be a relation of this tumor with pluripotential stem cells of mesenchyma surrounding distal part of the chondral bone germ.
上皮样肉瘤是一种罕见的软组织肿瘤。小结节结构、肿瘤结节中心的坏死灶、中等程度的淋巴细胞浸润是该肿瘤的特征性组织学特征。大多数肿瘤细胞具有上皮样组织细胞的外观。在类似透明软骨陷窝的小腔内发现一些肿瘤细胞。在上皮样肉瘤细胞中，超微结构观察到滑膜、成纤维细胞和组织细胞分化的迹象。基于文献分析和自身的超微结构数据，作者得出结论，该肿瘤应与软骨骨胚远端周围间充质的多能干细胞有关。
