[1022Metastatic Large Cell Carcinoma

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It has been reported that 9.7% of metastases of pulmonary large-cell carcinoma occur in the gastrointestinal tract and 5.7% in the small intestine, indicating that it is not an uncommon disorder [10]. Its symptoms include gastrointestinal bleeding with anemia. A patient who had undergone resection of a lung cancer a few years earlier underwent double-balloon endoscopy for a thorough examination of gastrointestinal bleeding (Fig. 10.2.5a). Contrast-enhanced radiography showed a mass (Fig. 10.2.5b). Biopsy resulted in a diagnosis of large-cell carcinoma, and the past history suggested metastasis of lung cancer. Partial resection of the small intestine was performed (Fig. 10.2.5c).

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