Asymptomatic Duodenal Metastasis From Small Cell Lung Cancer Diagnosed by Endoscopic Ultrasound-Guided Fine-Needle Aspiration

Akira Imoto, Daisuke Masuda, Atsushi Okuda, Wataru Takagi, Saori Onda, Tatsushi Sano, Mio Amano, Usama Abderaal, Takeshi Ogura, Yoshitaka Kurisu, Kazuhide Higuchi

Abstract


A 67-year-old man with small cell lung cancer was referred to our department. The patient had received chemotherapy for lung cancer and complained of no specific symptoms. Follow-up positron emission tomography (PET) showed a new duodenal lesion. Immunohistochemistry (IHC) with the specimens obtained by endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) showed that the lesion was metastasis from lung cancer. These results contributed to the subsequent treatment strategy. Gastrointestinal metastasis from lung cancer diagnosed during the patients lifetime is rare. This is the first case of asymptomatic duodenal metastasis from small cell lung cancer diagnosed by EUS-FNA.




J Med Cases. 2016;7(9):411-415
doi: https://doi.org/10.14740/jmc2624w

Keywords


Gastrointestinal metastasis; Small intestine; Small cell lung cancer; Endoscopic ultrasound-guided fine-needle aspiration

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