Idiopathic Scrotal Calcinosis Masquerading as Epidermal Inclusion Cyst

Idiopathic scrotal calcinosis is an uncommon benign disorder involving the scrotal skin characterized by multiple calcified intradermal nodules. It was first described by Lewinskey in 1883. Deposition of calcium in the skin, subcutaneous tissue, muscles, and visceral organs is known as calcinosis. Commonly it involves the skin and it is called calcinosis cutis. Pathogenesis is still under debate as to whether the calcification is dystrophic or idiopathic. In this article we report a 45 year old asymptomatic male with multiple, painless, hard nodular scrotal skin nodules. There was no history of trauma or any systemic illness. A provisional diagnosis of sebaceous cyst of scrotum was made. His haematological and biochemical parameters were normal The patient was treated by primary excision at our hospital and diagnosed as a case of idiopathic scrotal calcinosis cutis on histopathology.