Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-7-14
pubmed:abstractText
The CT and MRI manifestations of pachygyria and agyria are presented with a review of the pathological features of the disorders and an evaluation of the diagnostic value of both imaging modalities. 15 cases were analysed retrospectively; of them, 12 were examined with CT and 3 with MRI. The analyses confirm 7 cases with agyria, 5 with pachygyria of bilateral cerebral hemisphere and 3 with limited pachygyria of unilateral hemisphere. On CT and MRI of the whole lesions, the cortex is thickened and the white matter is reduced in proportion. The surface of the brain remains flat and smooth or shows only a few broad gyri and shallow sulci. The border between gray and white matter is smooth. In 12 patients with agyria and pachygyria of the whole brain, the sylvian fissures are shallow, and insulae are exposed. The middle cerebral arteries course superficially along sylvian grooves close to the inner table of the skull. The cerebral contour is "hourglass" or "figure of eight". Associated brain anomalies include the heterotopia of gray matter in 5 cases, the schizencephaly (type I) in 2 cases and the agenesis of the corpus callosum in one case. In conclusion, the pathological changes of pachygyria and agyria are characteristics. CT and MRI are excellent modalities to evaluate these pathological features.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1001-5515
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
291-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
[CT and MR imaging of pachygyria and agyria].
pubmed:affiliation
Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041.
pubmed:publicationType
Journal Article, English Abstract