Document Detail

Is an isthmus block a prerequisite for the development of an attic retraction cholesteatoma?
MedLine Citation:
PMID:  8217135     Owner:  NLM     Status:  MEDLINE    
Computed tomography (CT) was used to investigate whether an isthmus block was present in 57 cases with attic retraction cholesteatomas. A ventilation route between the mesotympanum and attic was considered to exist in 30% of the cases and occurred predominantly in those ears with a cholesteatoma that did not extend into the antrum. Four cases were also found to have this ventilation route in CT scans taken before and after the development of cholesteatoma. These findings suggest that an isthmus block is not a prerequisite for the development of an attic retraction cholesteatoma.
T Yamasoba; S Kikuchi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery     Volume:  250     ISSN:  0937-4477     ISO Abbreviation:  Eur Arch Otorhinolaryngol     Publication Date:  1993  
Date Detail:
Created Date:  1993-12-15     Completed Date:  1993-12-15     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9002937     Medline TA:  Eur Arch Otorhinolaryngol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  300-3     Citation Subset:  IM    
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan.
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MeSH Terms
Cholesteatoma / etiology*,  pathology,  radiography
Ear Diseases / etiology*,  pathology,  radiography
Ear, Middle / pathology,  radiography
Tomography, X-Ray Computed

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