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- Motohiro Sato, Takashi Abe, Yuta Ito, Ken Koyama, and Yasutaka Hayashi.
- Department of Radiology, Ibaraki Prefectural Central Hospital, Ibaraki, Japan. motohiro.sato@gmail.com
- Clin Nucl Med. 2011 Aug 1;36(8):e98-100.
AbstractWe report a case of a primary collision lung cancer consisting of squamous cell carcinoma and adenocarcinoma. A 73-year-old man with an abnormality found on chest radiograph in the right lower lobe was examined by FDG PET/CT (F-18 fluorodeoxyglucose positron emission tomography/computed tomography). The tumor was composed of 2 different morphologic and FDG accumulation portions and a collision tumor was suspected. Histopathologically, this tumor was composed of squamous cell carcinoma and adenocarcinoma. Each element was clearly distinguished but touched. FDG PET/CT is a useful tool to diagnose collision tumor as it shows morphologic and metabolic differences between 2 distinct tumor components.
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