Papillary thyroid carcinoma presenting at entopic and ectopic sites: A diagnostic conundrum.

Papillary thyroid carcinoma (PTC) mostly occurs within the thyroid gland (entopic site), with its occurrence within an ectopic thyroid tissue being rare comprising less than 1% of all thyroid cancers. The coexistence of PTC in entopic and ectopic sites is even rarer, and differentiating ectopic PTC from a metastatic cervical lymph node may pose a diagnostic conundrum. This report is aimed at highlighting the diagnostic challenges and treatment of this rare condition. [ABSTRACT FROM AUTHOR]