Papillary thyroid microcarcinoma with lung metastases: a case report and review of the literature

Abstract Background Distant metastasis from papillary thyroid microcarcinoma (PTMC) is rare. Here we report a case of PTMC with multiple lung metastases. Case presentation A 64-year-old man presented to our hospital abdominal pain. Computed tomography incidentally revealed nodules. The tumor was histologically diagnosed as carcinoma (PTC) by core needle biopsy via thoracoscopy. patient referred department for further examination. Neck ultrasonography 0.9 cm hypoechoic nodule in the right lobe gland, which PTC fine-needle aspiration cytology. Subsequently, total thyroidectomy performed, followed radioiodine therapy. Iodine-131 (131-I) scintigraphy showed strong accumulation metastasis. no evidence progression 25 months after operation. Conclusions Lymph node or extraglandular extension has been reported few published cases metastatic PTMC, including present case, and average age these 58.8 ± 12.0 years. Although active surveillance without surgical resection expected become standard care this indicates that subset patients risk factors may develop distant Hence, careful preoperative screening required avoid complications associated completion thyroidectomy.