Pilomatricoma of the Pinna

Perforating pilomatricoma presenting as an ulcer in the helix of the pinna.

A 24-year-old woman presented with a painless swelling in her right pinna which was noticed about four months back and had a recent increase in size. On examination, a 1.5×1 cm, firm, non-tender skin-colored nodule was seen in the helix. A clinical diagnosis of keloid was rendered. Considering chances of recurrence following surgical excision and because the woman was not concerned about cosmes...

Sonography of the ear pinna.

OBJECTIVE This study was undertaken to assess the scope of sonography for the diagnosis of diseases of the external ear. METHODS We developed a description of the sonographic anatomy of the normal ear pinna, including the thickness of the normal cartilage and lobule, through systematic scanning of the external ears of 11 healthy volunteers (2 male and 9 female), and reviewed clinical cases wi...

Pilomatricoma: Case Report

is a benign, usually asymptomatic tumor arising from hair follicular matrix cells. It is usually a solitary lesion and is most commonly found on the face and upper extremities, appearing as a firm, dermal nodule covered by the normal skin. Although the tumor can occur in patients of any age, about 60% of pilomatricomas are found in those aged less than twenty (1, 2). Most cases involve a single...

Pilomatricoma of the auricular region: case report.

Pilomatricomas are relatively rare tumors of ectodermal origin from the outer root sheath cell of the hair follicle. They are usually asymptomatic, solitary, firm or hard, freely mobile, dermal or subcutaneous nodules. The purpose of this article is to present a case that illustrates the diagnostic difficulty encountered by oral surgeons and pathologists and to review the literature regarding p...

Ectopic pinna.