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AJR Am J Roentgenol. 1989 Feb;152(2):353-60.

Absence of the septum pellucidum: a useful sign in the diagnosis of congenital brain malformations.

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  • 1Department of Radiology, Letterman Army Medical Center, Presidio of San Francisco, CA 94129-6700.

Abstract

In a review of more than 2000 MR images of the brain we identified 35 patients with absence of the septum pellucidum. These patients were divided into seven basic groups as follows: septooptic dysplasia; schizencephaly; holoprosencephaly; agenesis of the corpus callosum; chronic, severe hydrocephalus; basilar encephaloceles; and porencephaly/hydranencephaly. Absence of the septum pellucidum was never seen as an isolated finding. By using data gathered from the review of the MR scans of patients in this study, we devised a diagnostic algorithm to aid in the classification of these patients. Absence of the septum pellucidum can provide a valuable clue to the diagnosis of malformations of the brain.

PMID:
2783514
[PubMed - indexed for MEDLINE]
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