Gabbert H, Wagner R, Becht E
J Cancer Res Clin Oncol. 1981;100(3):285-93. doi: 10.1007/BF00410689.
We report about an extremely rare case of malignant fibrous histiocytoma (MFH) of the renal capsule. The tumor is composed of fibroblast-like cells arranged in a storiform pattern and histiocyte-like cells with multinucleated giant cells, both showing no iron reaction. Characteristic of the histiocytic quality of the tumor are numerous PAS-positive intracytoplasmic droplets which can be identified as erythrophagosomes only under the electron microscope. Emphasis is put on the preoperative differential diagnosis of the tumor from renal cell carcinoma as well as on its histogenesis and prognosis.
我们报告了一例极其罕见的肾包膜恶性纤维组织细胞瘤(MFH)。肿瘤由呈车辐状排列的成纤维细胞样细胞和伴有多核巨细胞的组织细胞样细胞组成,两者均无铁反应。肿瘤组织细胞性质的特征是大量PAS阳性的胞浆内小滴,只有在电子显微镜下才能鉴定为噬红细胞体。重点在于该肿瘤术前与肾细胞癌的鉴别诊断及其组织发生和预后。