Tonsil cancers account for 0,3% of all cancers and 6,7% of head and neck cancers. However, metastasis to tonsil is extremely rare. The kidney, skin, lung and breast are most common sites of primary tumor. Different histological types of lung cancer can metastase to tonsil. We present a case with left tonsil metastasis of lung adenocarcinoma. The most important point with our case is that the patient had his complaints for 1 year and received irrelevant treatments. As in our case, tonsil neoplasms may present with peritonsillar abscess. However, patients with history of cancer and prolonged complaints need a thorough evaluation of suspicious tonsil enlargement. Metastases may be synchronous with the lung tumor or may be observed before or after the treatment of primary tumor. Careful examination and radiological evaluation are very important in cancer patients; and biopsy must be performed in all cases with clinical suspicion.

Tonsil cancers account for 0,3% of all cancers and 6,7% of head and neck cancers. However, metastasis to tonsil is extremely rare. The kidney, skin, lung and breast are most common sites of primary tumor. Different histological types of lung cancer can metastase to tonsil. We present a case with left tonsil metastasis of lung adenocarcinoma. The most important point with our case is that the patient had his complaints for 1 year and received irrelevant treatments. As in our case, tonsil neoplasms may present with peritonsillar abscess. However, patients with history of cancer and prolonged complaints need a thorough evaluation of suspicious tonsil enlargement. Metastases may be synchronous with the lung tumor or may be observed before or after the treatment of primary tumor. Careful examination and radiological evaluation are very important in cancer patients; and biopsy must be performed in all cases with clinical suspicion.