炎性纤维性组织细胞瘤是恶性纤维性组织细胞瘤一种类型。作者报道一例49岁的女性患者四处病变的活检,做了光镜和超微结构观察。光镜:瘤组织含丰富的毛细血管,嗜中性粒细胞散在或成堆的浸润,见间变的组织细胞和多核细胞,后者有丰富的嗜硷性胞浆,核仁明显,核仁嗜硷性。有类似Sternberg—R-eed氏细胞的组织细胞。核分裂多见。组织内无纤维母细胞,无席纹状结构。电镜:组织细胞三种类型① Inflammatory fibrous histiocytoma is a type of malignant fibrous histiocytoma. The authors report a biopsy of a 49-year-old female with pathological lesions and microscopic and ultrastructural observations. Light microscopy: tumor tissue is rich in capillaries, neutrophils scattered or piles of infiltration, see the change between the tissue cells and multinucleated cells, the latter is rich in basophilic cytoplasm, prominent nucleoli, nucleoli Alkalophilic There are tissue cells similar to Sternberg-R-eed’s cells. Nuclear fission more common. No fibroblasts within the organization, no seat stripes structure. Electron microscopy: three types of tissue cells ①