| Intracranial subdural osteoma: A rare benign tumor that can be differentiated from other calcified intracranial lesions utilizing MR imaging. | |
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MedLine Citation:
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PMID: 22197691 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We report the magnetic resonance (MR) imaging characteristics of subdural osteoma and other benign calcified intracranial lesions to highlight imaging features that differentiate between these disease entities. A 63-year-old woman presented with progressively altered mental status. Non-contrast CT demonstrated a densely calcified right middle cranial fossa extra-axial mass. MR imaging of the lesion demonstrated T1 and T2 hypointensity without evidence of contrast enhancement, parenchymal abnormality, or connection to adjacent venous structures. Diffusion weighted imaging demonstrated markedly decreased signal intensity and artificially reduced diffusion on apparent diffusion coefficient map. Histologically, the tumor was predominantly composed of lamellar bone and small fragments of residual dura consistent with subdural osteoma. This case demonstrates that radiological examination can provide additional insight into the origin of intracranial osteomas (extradural versus subdural versus sinonasal) and help distinguish from other diagnostic considerations including benign meningeal ossification and calcified meningioma prior to surgical resection. |
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Authors:
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Ramon F Barajas Jr; Arie Perry; Michael Sughrue; Manish Aghi; Soonmee Cha |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-23 |
Journal Detail:
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Title: Journal of neuroradiology. Journal de neuroradiologie Volume: - ISSN: 0150-9861 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7705086 Medline TA: J Neuroradiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier Masson SAS. |
Affiliation:
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UCSF Department of Radiology and Biomedical Imaging, Neuroradiology Section, University of California, 505, Parnassus Avenue, Long L200B, Box 0628, San Francisco, CA 94143, Unites States. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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