Sonographic findings in testicular sarcoidosis simulating malignant nodule

Testicular involvement by sarcoidosis is rare. We report a case of a patien t with known sarcoid who had a unilateral testicular nodule with apparent c apsular invasion on sonography. The epididymis was normal on both sides. De spite these atypical features, pathology showed the nodule to be a sarcoid granuloma. In patients with sarcoidosis, the differential diagnosis of an i ntratesticular mass should include testicular involvement by sarcoid. (C) 1 999 John Wiley & Sons, Inc.