Imaging and Review of Pre-auricular Pilomatricoma in Adult

Document Type : Case report

Authors

1 HELWAN UNIVERSITY HOSPITAL

2 SHEBEIN ELKOM TEACHING HOSPITAL

Abstract

Pilomatricoma is an uncommon benign skin tumor arising from the hair follicle. It usually occurs in the head and neck
region and is typically found in the pediatric age group particularly girls. A 36-year-old adult male presented with a mildly
tender mass in the right preauricular region. The mass became larger, and the overlying skin turned purple. Head and
neck examination revealed no evidence of adenopathy, paresthesia or motor nerve deficiency. Computed Tomographic
(CT) scan with contrast of the facial region were obtained. It demonstrated the lesion to be superficial to the parotid
gland. The lesion was surgically excised. The patient was well post operatively. Histopathological examination of the
excised specimen showed pilomatricoma. Pilomatrixoma is often misdiagnosed clinically as epidermoid cyst, sebaceous
cyst, dermoid cyst, parotid lesion and infected lymph node, but a high index of suspicion and careful examination of its
characteristic clinical feature can help clinicians to differentiate it from other lesion

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