Open AccessUNUSUAL RENAL PELVIC TUMOR CONTAINING TRANSITIONAL CELL CARCINOMA, ADENOCARCINOMA AND SARCOMATOID ELEMENTS (SO‐CALLED SARCOMATOID CARCINOMA OF THE RENAL PELVIS)
Author(s) -
Tajima Yasutaka,
Aizawa Miki
Publication year - 1988
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1988.tb02352.x
Subject(s) - sarcomatoid carcinoma , renal pelvis , pathology , medicine , adenocarcinoma , transitional cell carcinoma , renal cell carcinoma , carcinoma , kidney , cancer , bladder cancer
A case of sarcomatoid carcinoma of the renal pelvis in a 66‐year‐old male is reported. The patient underwent left nephroureterectomy because of renal pelvic tumor and hydronephrosis. Left renal calcification and atrophy had been diagnosed in the patient about thirty years previously. The tumor showed a polypoid configuration and occupied the renal calyces. Histologically, not only solid nests of transitional cell carcinoma (TCC) and adenocar‐clnomatous glands but also large spindle‐shaped cells with bizarre nuclei simulating sarcoma were identified. Immunoreactlve keratin and epithelial‐membranous antigen (EMA) were demonstrated in the sarcomatoid cells, indicating that they were of epithelial origin. So far, only 10 cases of so‐called sarcomatoid carcinoma or carcinosarcoma of the renal pelvis have been reported in the world. In this report, we summarize the pathological findings of previously reported cases and discuss the histogenesis of this rare tumor.