SOLITARY FIBROUS TUMOR OF THE ADRENAL GLAND WITH RENAL CELL CARCINOMA AND ANGIOMYOLIPOMA AT THE SAME TIME; A CASE REPORT

Solitary fibrous tumor (SFT) is a neoplasm of pleura and its occurrence in the retroperitoneal space is rare. We report a case of SFT of the adrenal gland associated with ipsilateral renal cell carcinoma (RCC) and angiomyolipoma (AML).A48-year-old woman was referred to our hospital for a left renal AML. Computed tomography (CT) in our hospital showed a left adrenal mass (25×20 mm). Because the adrenal tumor was nonfunctioning, she was followed at outpatient clinic. Four years later, CT showed an increase in the left adrenal tumor size (42×30 mm) and a left RCC. Left adrenectomy and partial nephrectomy for RCC and AML were simultaneously performed. Histological examination revealed adrenal SFT and clear cell carcinoma and AML of the kidney.We present a brief review on histological characteristics of retroperitoneal SFT and its occurrence in the adrenal grand region.