Open AccessDuodenum metastatic adenocarcinoma of lung origin: A case report
Author(s) -
Tsai TsungJung,
Chen TsungHsien,
Tung ChunLiang
Publication year - 2020
Publication title -
advances in digestive medicine
Language(s) - English
Resource type - Journals
ISSN - 2351-9800
DOI - 10.1002/aid2.13177
Subject(s) - medicine , adenocarcinoma , cytokeratin , synaptophysin , lung , metastasis , pathology , duodenum , cdx2 , keratin 7 , adenocarcinoma of the lung , gastroenterology , oncology , cancer , immunohistochemistry , biology , transcription factor , biochemistry , homeobox , gene
Duodenal metastases from lung adenocarcinoma are extremely uncommon, and rarely produce symptoms. We report a case of duodenal metastasis from primary lung adenocarcinoma presented with history of gastroesophageal reflux disease, superficial gastritis, and chemotherapy‐related grade I fatigue. Tumor cells showed immunopositivity for cytokeratin‐7 (CK7), thyroid transcription factor 1, and immunonegativity for CK20, CDX2, and synaptophysin, supporting the diagnosis of metastatic adenocarcinoma of the lung origin.