Tehran University of Medical Sciences Case Reports in Clinical Practice 2538-2683 1 4 2017 06 24 96 98 EN Habib Tavassoli Department of Pathology, Alavi Hospital, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran. Farzin Valizadeh Department of Urology, Alavi Hospital, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran. Ali Samady School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran. 2016 08 26 2017 03 14 Leiomyomas are benign tumors originating from smooth muscles. Uterus is the common site they are originated. However, genitourinary leiomyomas are the least common type of non-uterine types. We are reporting a case of right-side scrotal spermatic cord leiomyoma in a 26-year-old man presenting as a painless mass. According to the ultrasonography report as an extratesticular mass, he underwent trans-inguinal tumor resection surgery. A well-defined creamy-white ovoid mass with whorling cut surface which was tightened to the posterior of the cord was resected and then sent to pathology service where histologically the diagnosis of leiomyoma was made. Leiomyoma, having concerned its rarity, can be a possible differential diagnosis of extratesticular masses   https://crcp.tums.ac.ir/index.php/crcp/article/view/79 https://crcp.tums.ac.ir/index.php/crcp/article/download/79/54