Intrascrotal and extratesticular multiple schwannoma

Abstract

Schwannoma, which may occur in any region of the body, is very rare in the scrotum. Schwannomas are tumors that originate from Schwann cells and, theoretically, could affect any nerve. In spite of the rich innervation of the genital area, these kinds of tumors are not common in the scrotum. A 67-year-old man visited our hospital for investigation of a 2-year episode of multiple slowly growing masses in the scrotum. Testicular tumor markers were within normal range (beta human chorionic gonadotropin <5 mIU, α-fetoprotein : 4.86 ng/ml). Scrotal ultrasonography revealed intrascrotal and extratesticular masses in the mid-scrotal region. Complete excision of the scrotal masses was performed. After surgery there was no testicular invasion. Histological examination of the resected specimen showed them to be schwannomas of the scrotum. We report one case of multiple schwannomas of the scrotum with a review of the literature.

Keywords: Alpha-fetoproteins; Neurilemmoma; Scrotum.

Fig. 1

Male genital schwannoma. (A) Gross appearance, (B) microscopic appearance. Areas showing compact spindle-shaped cells (H&E, ×200).

Fig. 2

Ultrasound imaging. showing an intrascrotal and extratesticular mass in the midscrotal region (arrows).