Diagnosis and treatment of primary adult renal sarcoma.
OBJECTIVE
To investigate the clinical characteristics of primary adult renal sarcoma.


METHODS
A total of 1654 cases with adult renal tumors were treated during 1985 to 2009 in Peking Union Medical College Hospital. Of all, 17 cases were diagnosed as primary renal sarcoma and underwent radical nephrectomy. The clinical features of 17 such patients were retrospectively analyzed.


RESULTS
The first symptom of 10 (59%) cases in all renal sarcomas was abdominal mass. The pathological diagnosis was leiomyosarcoma (7 cases), rhabdomyosarcoma (2 cases), malignant fibrous histiocytoma (2 cases), low-differentiated sarcoma (2 cases), chromophobe renal cell carcinoma coexisting with liposarcoma (1 case), fibrosarcoma (1 case), embryonic sarcoma (1 case) and leiomyosarcoma (1 case). One patient died of tumor thrombus of the inferior vena cava during surgery. Finally, 15 cases were regularly followed up for 4 to 60 months. Till now, 1 had tumor-free survival for 9 months, and the other 14 cases died 2-38 months after the operation with a median survival time of 18 (range, 5-60) months. The median survival time of leiomyosarcoma group was 28 (range, 11-60) months, and 2 cases of malignant fibrous histiocytoma died 4 and 8 months after the operation respectively.


CONCLUSIONS
The primary renal sarcoma has the clinical symptom similar with advanced renal cell carcinoma and has poor prognosis. Leiomyosarcoma might have relative good prognosis.
Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China.
Zhong-ming
ZM
Huang
Han-zhong
HZ
Li
Zhi-gang
ZG
Ji
Bing-bing
BB
Shi
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012509:Sarcoma / Q000175:diagnosis* / Q000601:surgery*