Send to

Choose Destination
J Thorac Dis. 2013 Apr;5(2):E21-4. doi: 10.3978/j.issn.2072-1439.2012.06.03.

Thyroid gland metastasis from small cell lung cancer: an unusual site of metastatic spread.

Author information

Department of Pneumonology, Arny General Hospital of Athens, Athens, Greece;


Metastasis to the thyroid gland is uncommon compared with the frequency of primary thyroid tumors. The primary sites of metastatic thyroid tumors usually include the breast, lung, kidney and stomach. Among lung cancer types metastasizing to the thyroid, adenocarcinomas are the commonest followed by squamous and large cell carcinomas. Small cell lung carcinoma has not been frequently reported to cause thyroid metastatic deposits. Herein, we describe a patient with small cell lung cancer who developed metastatic lesions to the thyroid and brain simultaneously. Thyroid ultrasonography-guided fine-needle aspiration cytology (US-FNAC) and particularlyimmunocytochemistry documented metastasis from primary lung cancer. Clinical, cytopathological and therapeutic aspects of this unusual site of extrathoracic metastatic disease are discussed laying special emphasis on the paramount importance of the immunocytochemistry in distinguishing primary thyroid tumors from thyroid metastasis due to lung cancer.


Small cell lung cancer; fine-needle aspiration cytology (FNAC); immunocytochemistry; metastasis; thyroid

Supplemental Content

Full text links

Icon for AME Publishing Company Icon for PubMed Central
Loading ...
Support Center