Metastatic lung cancer associated with Warthin's tumour.

Warthin's tumors which can easily be subjected to misinterpretation are encountered commonly in clinical practice. Warthin's tumors which generally have the localization of parotid gland cauda and have a slow growing characteristic can rarely be seen aside from parotid gland; such as cervical lymph nodes and minor salivary glands. A 56-year-old patient's case that comprised atypical coexistence of Warthin tumor with PET/CT scan positive cervical lymph nodes during the diagnostic examination carried out for a pulmonary mass lesion is presented. While the transthoracic biopsy performed for the mass indicated non-small cell lung carcinoma, histopathologic diagnosis established for the lymph node reported Warthin tumor. Early detection of Warthin tumor may result in earlier diagnosis of lung cancer since patients with Warthin tumor have a higher risk of lung malignancy.