Bulla-like Malherbe’s Calcyfying Epithelioma Induced by Deltoid Muscle Rupture

OpenAlex İngilizce

Pilomatricomas are usually benign and relatively common skin tumors which orginate from primitive cells of the hair matrix.The typical appearance of the tumor is usually soliter, firm, flesh-colored and asymptomatic nodule beneath the skin, and usually affects young individuals.In recent years, except for the typical clinical presentation, some atypical bulla-like lesions have been reported.It has been stated that mechanical irritation, pricking or blunt trauma could be the most likely contributing factors.Herein we report a 28 year-old man with bullous pilomatricoma which developed after a deltoid muscle rupture in the course of a weight-lifting exercise.To the best of our knowledge the lesion is the first example of bulla-like pilomatricoma induced by a muscle rupture.