A Case of Papillary Thyroid Carcinoma Coexistent with Thyroid Sarcoidosis / 대한갑상선학회지

ABSTRACT

Sarcoidosis is a systemic granulomatous disease that primarily affects the lung and lymphatic system of the body. The involvement of thyroid gland with sarcoidosis is uncommon. Moreover, sarcoidosis with thyroid cancer are rarely reported in the world. We encountered papillary thyroid carcinoma (PTC) coexistent with pulmonary sarcoidosis. A 35-year-old female with a medical history of pulmonary sarcoidosis visited the endocrinology department for evaluation of the thyroid nodule. Thyroid ultrasonography showed multiple markedly hypoechoic nodules in the left thyroid lobe. Then ultrasonogram-guided fine needle aspiration of left thyroid nodule was positive for papillary carcinoma. She underwent total thyroidectomy with left complete cervical lymph node dissection. The histopathology was confirmed PTC combined with non-caseating granulomatous inflammation suggesting sarcoidosis on thyroid mass and lymph node. We report here a case of PTC coexistent with thyroid involvement of pulmonary sarcoidosis.