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KMID : 1033720190200030181
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Archives of Craniofacial Surgery
2019 Volume.20 No. 3 p.181 ~ p.185
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Multifocal intraosseous calvarial hemangioma misdiagnosed as subgaleal lipoma
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Kim Joo-Hak
Ahn Chang-Hwan
Kim Kyung-Hee
Oh Sang-Ha
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Abstract
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Intraosseous hemangioma is a rare, slow-growing, benign tumor of blood vessels. Primary hemangioma of the skull is a benign lesion that may appear as a palpable mass or accidentally detected during image evaluation. Simple radiography is the most commonly used technique to localize a lesion and computed tomography (CT) may help determine the effect of a lesion. We report a case of multifocal intraosseous calvarial hemangioma developed in the subgaleal plane of an elderly male patient. Ultrasonography examination revealed hyperechoic striated septae parallel to the skin and discontinuity of the focal cortex, however, the underlying bone cortex appeared relatively intact. No significant flow is observed on Doppler ultrasonography. Based on these evaluations, the mass was interpreted by a radiologist as a subgaleal lipoma. This case highlights the importance of additional CT examination in a patient presenting with a scalloping sign of the underlying calvarium. Clinicians also should be aware of the possibility of intraosseous calvarial hemangiomas in lesion. Furthermore, the proper choice of congenital vascular malformation term is still quite confusing with misconception present in the literature.
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KEYWORD
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Lipoma, Skull, Ultrasonography, Vascular malformations
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