Pilomatrixoma of the earlobe.

BACKGROUND: Pilomatrixoma most commonly occurs in the head and neck region, appearing primarily in the first two decades of life. The lesion is described as a tumor with differentiation toward hair cells and surgical excision is the treatment of choice.

OBJECTIVE: We report an uncommon localization of a perforating type pilomatrixoma of 5 x 4 x 4 cm in size that developed from the earlobe.

METHODS: Histopathological examination revealed pilomatrixoma. Total resection of the tumor was performed. The earlobe was reconstructed by forming a posterior-superior pedicled skin flap.

RESULTS: No recurrence was observed and a good cosmetic result was obtained.

CONCLUSION: Local recurrence does not generally occur if the tumor is completely removed. The case we present is of interest in having a history of trauma to the region and a relatively rapid growth with perforation of the overlying skin.