Low‑grade papillary adenocarcinoma of nasopharynx with expression of thyroid transcription factor‑1: Case report and review of literature.

Low‑grade papillary adenocarcinomas with expression of thyroid transcription factor‑1 (TTF‑1) are rare tumors of the nasopharynx, with only a few cases reported in the literature. These tumors have an excellent prognosis following complete surgical excision. We report a 13‑year‑old boy with this rare tumor in the nasopharynx. The patient underwent complete surgical excision of the tumor and was on follow‑up without evidence of recurrence.