Kenney R M, Prat J, Tabernero M
Am J Surg Pathol. 1984 Feb;8(2):139-44. doi: 10.1097/00000478-198402000-00008.
A 56-year-old man with painless hematuria was found to have a papillary transitional cell carcinoma of the renal pelvis with an accompanying nodule composed of multinucleated and mononuclear cells, resembling a giant cell tumor of bone. The nodule was well demarcated from the carcinoma and most likely represents a response to hemorrhage into a cystic cavity. A classification composed of four groups is proposed for extraosseous tumors having features resembling giant cell tumors of bone. This grouping should help in predicting prognosis and avoid the overdiagnosis of sarcoma or undifferentiated carcinoma.
一名56岁无痛性血尿男性被发现患有肾盂乳头状移行细胞癌，伴有一个由多核和单核细胞组成的结节，类似骨巨细胞瘤。该结节与癌界限清楚，很可能是对囊腔内出血的反应。对于具有类似骨巨细胞瘤特征的骨外肿瘤，提出了一个由四组组成的分类方法。这种分组有助于预测预后，并避免肉瘤或未分化癌的过度诊断。
