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Temporal lobe encephalocele in the lateral recess of the sphenoid sinus presenting with intraventricular tension pneumocephalus.
MedLine Citation:
PMID:  21772809     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A basal encephalocele often shows an insidious clinical course. Only two cases of temporal lobe encephalocele accompanied with tension pneumocephalus have previously been reported. In this paper, we describe a case of lateral sphenoid sinus encephalocele presenting with intraventricular tension pneumocephalus. A 54-year-old man was referred to our institution presenting with intraventricular tension pneumocephalus. He had undergone ventriculoperitoneal shunt placement for postmeningitis hydrocephalus 3 months before this admission. Precise imaging examinations detected evidence suggestive of a lateral sphenoidal sinus recess encephalocele. Endoscopic transnasal approach was performed for surgical repair of the encephalocele. The encephalocele was removed with subsequent repair of the bony defect. Histological examination showed that the encephalocele includes a part of the ventricular system. This indicates that air might enter directly into the ventricular system after rupture of the temporal lobe encephalocele. A lateral sphenoid sinus encephalocele would potentially cause intraventricular tension pneumocephalus, although pneumocephalus is an extremely unusual complication of this type of basal encephaloceles.
Authors:
Toshika Ohkawa; Naoyuki Nakao; Yuji Uematsu; Toru Itakura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Skull base : official journal of North American Skull Base Society ... [et al.]     Volume:  20     ISSN:  1532-0065     ISO Abbreviation:  Skull Base     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2011-07-20     Completed Date:  2011-11-10     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101090660     Medline TA:  Skull Base     Country:  United States    
Other Details:
Languages:  eng     Pagination:  481-6     Citation Subset:  -    
Affiliation:
Department of Neurological Surgery, Wakayama Medical University, Wakayama, Japan.
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