title: Gastric metastasis from small cell lung cancer: a case report.
abstract: Small cell lung cancer (SCLC) represents a group of highly malignant tumors that give rise to early and widespread metastases at the time of diagnosis. The preferential metastatic sites are the brain, liver, adrenal glands, bone, and bone marrow. However, metastases of the gastrointestinal system, especially the stomach, are rare; most cases of stomach metastasis are asymptomatic and, as a result, are usually only discovered at autopsy. We report a case of gastric metastasis originating from SCLC. The patient was a 66-year-old man admitted to our hospital due to abdominal pain. He underwent gastroscopy, with the pathological report of the tissue biopsy proving it to be a small cell cancer. Immunohistochemistry was positive for CD56, synaptophysin, and pan-cytokeratin. These results confirmed the diagnosis of gastric metastasis of a neuroendocrine small cell carcinoma from the lung.
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Song
authors: S
authors: Gao
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Xu-Dong
authors: XD
authors: Hu
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Su-Zhen
authors: SZ
authors: Wang
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Ning
authors: N
authors: Liu
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Wei
authors: W
authors: Zhao
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Qing-Xi
authors: QX
authors: Yu
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Wen-Hong
authors: WH
authors: Hou
authors: Song Gao, Xu-Dong Hu, Su-Zhen Wang, Ning Liu, Wei Zhao, Qing-Xi Yu, Wen-Hong Hou, Shuang-Hu Yuan, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China.
authors: Shuang-Hu
authors: SH
authors: Yuan
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D017809:Fatal Outcome; D005773:Gastroscopy; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000737:chemistry / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D011237:Predictive Value of Tests; D055752:Small Cell Lung Carcinoma / Q000737:chemistry / Q000150:complications / Q000188:drug therapy / Q000556:secondary*; D013274:Stomach Neoplasms / Q000737:chemistry / Q000150:complications / Q000188:drug therapy / Q000556:secondary*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor
keywords: Gastric metastasis; Immunohistochemistry; Small cell lung cancer