Nasal dorsum reconstruction after pediatric nasal dermoid excision

Background: To review our experience with pediatric nasal dermoids, and discuss reconstructive options for the nasal dorsum after pediatric nasal dermoid removal. Methods: Retrospective review of pediatric nasal dermoid cases from January 1 2005 through October 1 2016. Results: Twenty-five cases (12 males, 13 females) were identified. Median age at time of surgery was 24 months (7-144). Ten nasal dermoids were superficial; eleven, intraosseous; one, intracranial extradural; three, intracranial intradural. Seven were located on the glabella; fifteen, dorsum; three, nasal tip. Twelve underwent vertical midline incision; ten underwent external rhinoplasty; and three combined approach with craniotomy. There was one recurrence four years postoperatively; which was secondarily resected completely via external rhinoplasty approach. Seven cases utilized endoscopic assistance. Conchal cartilage grafting was utilized in nine cases for dorsal reconstruction. A tempomparietal fascial graft was utilized to reconstruct the soft tissue defect in three patients. Median follow-up was 1.17 years (1 month-10 years). Conclusions: Nasal dermoid is a rare congenital pathology. Recurrence rate is generally low provided that complete surgical excision is achieved. Achieving complete surgical excision means sometimes compromising the upper lateral cartilages and nasal bones. Conchal cartilage grafting is useful in reconstruction for lesions that significantly disrupt the nasal cartilages and/or nasal bones, wherein the defect is significant and osteotomies may not be sufficient. Temporoparietal fascia is a favorable adjunct for reconstructing soft tissue deficits when the skin is thin. Further studies and longer follow up are needed to adequately assess functional and cosmetic outcomes.