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Sang Woon Kim 2 Articles
Gastric Adenocarcinoma with Coexistent Hepatoid Adenocarcinoma and Neuroendocrine Carcinoma: A Case Report.
Aeri Kim, Sang Woon Kim, Sun Kyo Song, Young Kyung Bae
Korean J Pathol. 2009;43(1):79-82.
DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.1.79
  • 2,708 View
  • 22 Download
  • 1 Citations
AbstractAbstract PDF
This report represents a very rare case of a gastric adenocarcinoma that was coexistent with hepatoid adenocarcinoma and neuroendocrine carcinoma. A 77-year-old man was admitted to our hospital due to a huge ulcerofungating mass identified at the proximal body of the stomach. After a pathological diagnosis of the tumor as a poorly differentiated adenocarcinoma was made, the patient underwent a total gastrectomy with lymph node dissection. Microscopically, the tumor consisted of three morphologically distinct components-tubular adenocarcinoma, hepatoid adenocarcinoma and neuroendocrine carcinoma. The hepatoid adenocarcinoma component resembled a hepatocellular carcinoma and produced alpha-fetoprotein. The neuroendocrine carcinoma component was positive for chromogranin and synaptophysin immunostains. This is an example of the diverse morphological and immunophenotypical differentiation of gastric carcinomas.

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  • Gastric adenocarcinoma is concurrent with metastatic neuroendocrine cancer treated with nivolumab and chemotherapy: A case report
    Bing Yan, Meiqi Cui, Junhao You, Fang Li, Hui Liu
    Molecular and Clinical Oncology.2018;[Epub]     CrossRef
Prognosis of Gastrointestinal Stromal Tumors Arising in the Stomach and Small Intestine: A Retrospective Study of 126 Cases from a Single Institution.
Sang Hee Seok, Jun Mo Kim, Jung Min Bae, Se Won Kim, Sang Woon Kim, Sun Kyo Song, Young Kyung Bae
Korean J Pathol. 2008;42(6):335-343.
  • 1,815 View
  • 36 Download
AbstractAbstract PDF
BACKGROUND
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor in the gastrointestinal tract. As all GISTs have the potential for aggressive clinical behavior, the guidelines for defining the risk of aggressive behavior have been developed and they have been recently revised to precisely assess these patients' prognosis.
METHODS
We analyzed 94 gastric and 32 small intestinal GISTs to compare the patients' survival with the risk stratification (original and revised). RESULTS: For gastric GISTs, 10 mitoses/50HPF was an important cutoff value for the risk of metastasis (1.3% vs 29.4%, respectively), whereas 16.7% of all the small intestinal GISTs with less than 5 mitoses/50HPF metastasized. The small intestinal GISTs showed higher frequencies of mucosal invasion and coagulation necrosis than did the gastric ones. Gastric GISTs had a significantly lower incidence of metastasis/recurrence than did the small intestinal ones in the same risk group. On multivariate analysis, the anatomic location (small intestine), the tumor size (>10 cm) and the mitotic count (>10/50HPF) were independent prognostic factors for a shorter disease-free survival for patients with GISTs. The mitotic count was more important than tumor size for both gastric and small intestinal GISTs.
CONCLUSION
Small intestinal GIST is a more aggressive tumor than gastric GIST and the mitotic count is the most important prognostic factor for GISTs.

JPTM : Journal of Pathology and Translational Medicine