A rare symplastic or bizarre leiomyoma of the scrotum: a case report and review of the literature

Abstract

Background: We present a case of a symplastic or "bizarre" leiomyoma of the scrotum. Isolated cases of leiomyomas have been reported arising from the renal pelvis, bladder, spermatic cord, epididymis, prostate as well as the glans penis. However such mesenchymal lesions of the scrotum are very rare.

Case presentation: Macroscopically the tumour was a well-circumscribed grey-white lesion 8.5 cm in size. Because of its peculiar histological characteristics this tumour was assigned as a symplastic or bizarre leiomyoma of the scrotum.

Conclusion: We present this unusual tumour and highlight some important diagnostic and treatment pitfalls related to this rare tumour. This case demonstrates that leiomyomas should be considered in the differential diagnosis of scrotal tumours.

Figure 1

Demonstrates the clinical appearance of this tumour arising from the dependant part of the right hemiscrotum.

Figure 2

A histopathological slide demonstrating the characteristic interlacing bundles of spindle shaped muscle cells with pleomorphic nuclei and occasional nuclear inclusions found in symplastic leiomyomas.