Jin Seok Lee1, Su-Jin Shin2, Hyeok Jun Yun1, Seok Mo Kim1, hojin Chang1, Yong Sang Lee1* and Hang-Seok Chang1 1Department of Surgery, Gangnam Severance Hospital, Republic of Korea 2Department of Diagnostic Pathology, Gangnam Severance Hospital, Republic of Korea Provisionally accepted: The final, formatted version of the article will be published soon. Background: Primary thyroid lymphoma (PTL) is a very rare entity accounting for 5% of all thyroid malignancies and less than 2% of lymphomas.