Abstract
A gastrointestinal metastasis from lung cancer is rare and is quite often found during an autopsy. A 58-year-old man was admitted with left upper back pain and a mass in the left upper lobe on the chest radiograph. The transbronchial lung biopsy revealed an adenocarcinoma of the lung. A gastroduodenoscopy was carried out to evaluate the indigestion and epigastric discomfort. The duodenofibroscopy revealed bulging mucosa on the minor papilla of the duodenum. A metastasis to the duodenum from an adenocarcinoma of the lung was diagnosed by a duodenofibroscopic biopsy of the bulging lesion. We report this rare case of an adenocarcinoma of lung with a metastasis to the duodenum.
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