An Extragastrointestinal Stromal Tumor in the Omentum With Peritoneal Seeding Mimicking an Appendiceal Mucinous Cancer With Carcinomatosis
강정현, 전태주, 윤선옥, 이강영, 손승국,
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강정현 ( Kang Jeong-Hyun )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Surgery
전태주 ( Jeon Tae-Joo )
Yonsei University College of Medicine Department of Nuclear Medicine
윤선옥 ( Yoon Sun-Och )
Yonsei University College of Medicine Gangnam Severance Hospital Department of Pathology
이강영 ( Lee Kang-Young )
Yonsei University College of Medicine Severance Hospital Department of Surgery
손승국 ( Sohn Seung-Kook )
Yonsei University College of Medicine Department of Surgery
KMID : 0356720140300020093
Abstract
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. These tumors tend to present most frequently in the stomach, followed by the small intestine. GISTs can also arise from the omentum, retroperitoneum, mesentery, or pleura and are termed extragastrointestinal stromal tumors (EGISTs) when they do so. EGISTs arising from the omentum are very rare. Due to the limited incidence of EGISTs in the omentum, the diagnostic criteria are not well established, and making a correct diagnosis may be difficult. In this report, we present a case of an EGIST of the omentum with peritoneal metastasis that was initially suspected to be an appendiceal mucinous carcinoma with carcinomatosis on positron emission tomography/computed tomography imaging.
키워드
Gastrointestinal stromal tumors; Positron emission tomography
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