Ectopic thyroid carcinoma in the nasal septum: A case report

Ectopic thyroid carcinoma often occurs in the neck, and metastatic carcinoma of the nasal cavity and sinuses is extremely rare. An 11-year-old female was admitted to the hospital for one week due to nasal pain without an obvious cause and blood in the nose. A pale red mass with a peduncle at the back end of the right nasal septum was seen during the operation. Immunohistochemistry showed low-grade papillary thyroid carcinoma. Surgeons should be alert to the possibility of ectopic thyroid tissue and related diseases, Patients with suspected malignant lesions should undergo routine pathological examination, and even a normal thyroid should be checked for malignant changes to avoid negative outcomes. Although nasal endoscopic surgery is mature, for tumors with unclear properties, it is still necessary to undergo routine pathological examination to avoid habitual errors.