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Korean J Pathol. 2012 Jun;46(3):282-286. English. Case Report.
Kim KM , Kim YN , Chu HH , Jin HY , Kim MH , Chung MJ .
Department of Pathology, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea. mjchung@jbnu.ac.kr
Division of Endocrinology and Metabolism, Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.
Department of Thoracic and Cardiovascular Surgery, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.
Abstract

The tumor-to-tumor metastasis is a rare event. The lung tumors are the most common donor tumors in tumor-to-tumor metastasis, but are exceedingly rare as a recipient. Here, we report a case of papillary thyroid carcinoma (PTC) metastasizing to adenocarcinoma in situ (AIS, formerly bronchioloalveolar carcinoma) of the lung in a 44-year-old woman who underwent total thyroidectomy for PTC 8 years ago. To the best of our knowledge, the present case is the first case reporting on PTC metastasized to AIS. A review of the relevant literature is presented.

Copyright © 2019. Korean Association of Medical Journal Editors.