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KMID : 1201620100030030130
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Journal of Women s Medicine
2010 Volume.3 No. 3 p.130 ~ p.133
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Uterine vascular leiomyoma with a fat component mimicking angiomyolipoma: A case report
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An Jung-Suk
Kim Ha-Na
Cho Hyun-Yee
Chung Dong-Hae
Kim Na-Rae
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Abstract
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Here we describe an uterine vascular leiomyoma with a fat component which occurred in a 43-year-old woman. The tumor arose on the left parametrial wall of the uterine body. Pathologically, it was composed of thick-walled tortuous vessels and irregular bundles of smooth muscle cells, and was mixed with fat. The smooth muscle cells were immunoreactive for actin, desmin and vimentin. They were negative for cytokeratin, HMB-45, CD34, S-100 protein, progesterone receptor and estrogen receptor. Retrospectively, abdominal magnetic resonance images showed a well-demarcated mass of isointense signal on T1-weighted image, heterogeneous high signal intensity on T2-weighted images with thin tubule-like enhancement, suggesting tortuous vascular structures within the mass. Albeit rare, these radiologic findings may be helpful in distinguishing the vascular leiomyoma from other smooth muscle tumors. In our opinion, the histologic and immunohistochemical sharing features of uterine smooth muscle tumors may be responsible for underestimated incidence of this type of leiomyoma.
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KEYWORD
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Vascular leiomyoma, Parametrium, Uterus, Immunohistochemistry, Magnetic resonance imaging
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