Sonographic Features of an Adult Granulosa Cell Tumor of the Testis.

A 25-year-old man presented with epididymoorchitis. Sonography revealed a 5 mm hypoechoic lesion with scattered foci of high level echoes and an area of calcification in the upper pole of the left testicle close to the hilum. Growth and pronounced neovascularity was demonstrated a subsequent scan. An orchidectomy was performed and histological studies revealed a granulosa cell tumour of the testicle. Testicular granulosa cell tumors are extremely rare. Comparing the previously published findings to our case, we suggest that common sonographic features of testicular granulosa cell tumors include a hypoechoegenic lesion with hyperechoic and calcified foci, sharply defined edge, and internal vascularity.