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KMID : 1103720220830020432
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Journal of the Korean Society of Radiology
2022 Volume.83 No. 2 p.432 ~ p.438
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Primary Colonic Epithelioid Angiosarcoma with Hepatic Metastasis: A Case Report
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Lim Ji-Yun
Hong Seong-Sook
Hwang Ji-Young
Kim Hyun-Joo
Jin So-Young
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Abstract
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Colonic angiosarcoma is an extremely rare and aggressive malignant tumor with poor prognosis. We report a case of colonic epithelioid angiosarcoma with colonic obstruction and rapidly progressive hepatic metastasis in a 44-year-old female. Abdominal CT revealed a heterogeneously enhancing irregular mass in the ascending colon, causing proximal bowel distension. The patient underwent surgery, and histopathological examination revealed a poorly differentiated carcinoma. A follow-up liver dynamic MRI after 4 months revealed newly developed diffusely scattered numerous small nodules in both hepatic lobes with peripheral and nodular marked arterial hyperenhancement, raising the suspicion of hepatic angiosarcoma. A pathologic second opinion was obtained, and additional immunohistochemistry revealed colonic epithelioid angiosarcoma. The patient showed progressive hepatic metastasis on follow-up abdominal CT after 6 months and died 8 months after initial diagnosis. We describe an educational case of colonic angiosarcoma, a rare malignant tumor, with rapidly progressive hepatic metastasis that showed radiologic findings suggestive of angiosarcoma and enabled a re-diagnosis for proper treatment and prognosis prediction.
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KEYWORD
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Angiosarcoma, Colonic Neoplasms, Neoplasm Metastasis, Intestinal Obstruction, Multidetector Computed Tomography, Magnetic Resonance Imaging
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