Departmental Bulletin Paper 乳癌の後腹膜転移・腎浸潤により手術治療に難渋した腎細胞癌の1例
Renal Cell Carcinoma with Retroperitoneal Metastases and Renal Invasion from Breast Cancer : A Case Report

野口, 剛  ,  斉藤, 陽子  ,  三留, 拓  ,  梅本, 晋  ,  嘉数, 彩乃  ,  杉山, 朋子  ,  植木, 貞一郎

63 ( 4 )  , pp.151 - 155 , 2017-04-30 , 泌尿器科紀要刊行会
ISSN:0018-1994
NCID:AN00208315
Description
A 67-year-old female was hospitalized with back pain. Computed tomography (CT) incidentally revealed a tumor in her left kidney tumor (33 mm) and bilateral breast tumors. She underwent a breast biopsy and was diagnosed with breast cancer (invasive lobular cancer, cT2N0M0). The renal tumor was suspected to be clear cell carcinoma, cT1aN0M0, based on contrast-enhanced CT. Surgery was considered necessary for both the breast cancer and renal tumor. First, laparoscopic radical nephrectomy was performed for the renal tumor. However, the lateroconal fascia adhered strongly to the perirenal fat, and so simple nephrectomy was carried out after conversion to open surgery. The perirenal fat was also excised after the nephrectomy. A histopathological examination revealed clear cell carcinoma and renal invasion by invasive lobular cancer cells. Also, scattered metastases were detected in the perirenal fat and the lateroconal fascia. So, it was considered that retroperitoneal metastases from the breast cancer had directly invaded the kidney. After the operation, the patient received hormonal therapy for her breast cancer, and she was still alive and symptom-free 5 months after the operation.
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