[Clinical case - neoplasm of the nasal septum, which turned out to be papillary cancer of the ectopic thyroid gland].

In this clinical case, papillary carcinoma was detected in the ectopic area of the thyroid gland in the presence of an unchanged thyroid gland of natural localization. An extremely rare disease is presented and an examination algorithm is proposed that is recommended to exclude unusual pathology in the absence of a response to ongoing conservative treatment.