Trichoblastoma in a Newborn: A Case Report

Trichoblastoma is a benign skin tumor that arises from the hair germ, which is the precursor of the hair follicle. It is most frequently observed on the scalp and face. The occurrence of trichoblastoma in the pediatric population is extremely rare. As far as our research, we have not come across any reported case of trichoblastoma in newborns in the English literature. A 10-day-old male newborn was referred to our clinic because of swelling under the right neck since his birth. Physical examination revealed a painless, firm and mobile mass, approximately 3 cm in size on the right submandibular region. Magnetic resonance imaging showed a smooth contoured mass with diffuse contrast enhancement. Tru-cut biopsy results suggested that the tumor was composed of epithelial and myoepithelial component. Total mass excision was performed and the final pathological result was a trichoblastoma. The patient was discharged on the second day following the surgery and the subsequent two-year follow-up examination showed no signs of wound complications, indicating successful healing. Trichoblastoma should be taken into account in newborns with neck masses.