Giant Sternal Pilomatricoma: An Unusual Tumor at an Uncommon Site

Abstract

Pilomatricoma, pilomatrixoma, or calcified epithelioma of Malherbe is an uncommon, benign, isolated tumor of hair matrix primarily seen in children and young adults. The most common location is the head and neck region. It usually manifests as a small nodular mass. Here we report a rare case of giant pilomatricoma over the sternum in a 60-year-old male patient with an unusual clinical and radiological presentation mimicking a calcified sebaceous cyst.

Unusual presentation of pilomatricoma: A case report and comprehensive review of the literature

“…1 The clinical appearance of the lesion is a firm and single subcutaneous nodule, which is usually asymptomatic. 2,3 The prognosis for this tumoral lesion is good, and it is recommended to completely excise the lesion as the treatment. 3 One diagnostic challenge of this tumor is the possibility of rare variants with different clinical presentations.…”

“…This tumor originates from the matrix cells of the hair follicle and often affects the neck area in young adults and children 1 . The clinical appearance of the lesion is a firm and single subcutaneous nodule, which is usually asymptomatic 2,3 . The prognosis for this tumoral lesion is good, and it is recommended to completely excise the lesion as the treatment 3 …”