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KMID : 0357920060400020148
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Korean Journal of Pathology
2006 Volume.40 No. 2 p.148 ~ p.150
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Inflammatory Myofibroblastic Tumor of the Stomach - A Case Report -
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Kim Joon-Mee
Choi Suk-Jin
Kim Lucia
Han Jee-Young
Chu Young-Chae
Park In-Suh
Kim Kyung-Rae
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Abstract
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Inflammatory myofibroblastic tumor of the stomach is a rare tumor-like, benign disease with an uncertain pathogenesis. A 15-year-old male presented with epigastric pain. Endoscopic ultrasonography revealed a 2.3 cm sized ovoid intramuscular mass in the lower body of the stomach at the lesser curvature. Histologically, the tumor was composed of smooth muscle actin positive- and vimentin positive spindle cells and there were a large number of lymphocytes, plasma cells and histiocytes in the fibrotic background. The spindle cells were also positive for ALK1, but negative for EBV in situ hybridization.
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KEYWORD
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myofibroblastic tumor, Inflammatory pseudotumor, ALK, Stomach
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