Testicular leiomyoma masquerading as lymphoma

Abstract

Leiomyomas are benign tumors which arise from smooth muscle cells. They are usually seen in the uterus and other organs. In the genitourinary tract, the renal capsule is most commonly involved; however, leiomyoma involving testis is extremely rare. We describe the case of a 63-year-old male patient presented with painless swelling of the right scrotum for 2 years with gradual increasing in size. Ultrasonography of scrotum revealed well-defined hypoechoic mass in the right testis just beneath the tunica albuginea layer; hence, a diagnosis of testicular lymphoma was made. However, leiomyoma was confirmed by histopathological examination. This case highlights the rare occurrence and also it can mimic as malignancy.