Document Detail

Intradiploic arachnoid cyst identified by diffusion-weighted magnetic resonance imaging--case report.
MedLine Citation:
PMID:  11936057     Owner:  NLM     Status:  MEDLINE    
A 72-year-old woman presented with an intradiploic arachnoid cyst in the occipital intradiploic space which was found incidentally by magnetic resonance (MR) imaging. Computed tomography revealed a widened diploic space and thinning of the inner and outer tables of the occipital bone. The cyst appeared as isointense to the cerebrospinal fluid on both T1- and T2-weighted images. The differential diagnosis of intradiploic epidermoid cyst could be excluded because the lesion was low intensity on diffusion-weighted MR images. Arachnoid cyst is a benign lesion, so exploratory surgery should be avoided unless the cyst is symptomatic. Diffusion-weighted MR imaging is an effective modality to distinguish diploic epidermoid cysts from arachnoid cysts.
Satoshi Yamaguchi; Taizo Hirohata; Masayuki Sumida; Kazunori Arita; Kaoru Kurisu
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Neurologia medico-chirurgica     Volume:  42     ISSN:  0470-8105     ISO Abbreviation:  Neurol. Med. Chir. (Tokyo)     Publication Date:  2002 Mar 
Date Detail:
Created Date:  2002-04-08     Completed Date:  2002-05-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0400775     Medline TA:  Neurol Med Chir (Tokyo)     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  137-9     Citation Subset:  IM    
Department of Neurosurgery, Shobara Red Cross Hospital, Hiroshima, Japan.
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MeSH Terms
Arachnoid Cysts / diagnosis*,  surgery
Cerebrospinal Fluid
Diagnosis, Differential
Epidermal Cyst / diagnosis
Image Enhancement*
Magnetic Resonance Imaging*
Occipital Bone / pathology

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