Korean J Med.
2016 Oct;91(2):211-215. 10.3904/kjm.2016.91.2.211.
HER2-Positive Gastric Hepatoid Adenocarcinoma
- Affiliations
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- 1Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
- 2Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
- 3Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. miniryu@amc.seoul.kr
- KMID: 2357441
- DOI: http://doi.org/10.3904/kjm.2016.91.2.211
Abstract
- Gastric hepatoid adenocarcinoma is a rare adenocarcinoma that develops in the stomach. The prognosis of gastric hepatoid adenocarcinoma is poorer than that of ordinary gastric adenocarcinoma. Here, we report the first case of human epidermal growth factor receptor 2 (HER2)-positive gastric hepatoid adenocarcinoma in Korea. A 57-year-old male presented with abdominal distension and underwent endoscopic gastric biopsy and percutaneous core needle liver biopsy. The pathological findings were consistent with HER2-positive gastric hepatoid adenocarcinoma. He received six cycles of chemotherapy with cisplatin-capecitabine plus trastuzumab, which is a HER2 targeted agent. After chemotherapy, a follow-up abdominal computed tomography scan showed a partial tumor response. This case emphasizes the importance of using trastuzumab in a patient with HER2-positive gastric hepatoid adenocarcinoma.
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