Scrotal calcinosis: is it idiopathic or dystrophic? *

Background: Scrotal calcinosis is an uncommon lesion characterized by multiple calcific deposits within scrotal skin and often misdiagnosed clinically as epidermal cyst. Case: In this article, we described a scrotal calcinosis in a 19-year-old man in whom calcified nodules without evidence of epithelialize d lining were seen both in de rmis and within the bundles of dartos muscle. Additionally, these calcified nodules were surrounded by a few number of mononuclear lymphocytes, mast cells, and hyalinization. Conclusion: We concluded that, dystrophic calcification of dartos muscle, may be the basic mechanism of scrotal calcinosis in some cases.