Document Detail

Foramen tympanicum or foramen of Huschke: anatomical cone beam CT study.
MedLine Citation:
PMID:  22517996     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The foramen of Huschke (foramen tympanicum) represents a developmental defect in the antero-inferior aspect of the bony external auditory meatus. The foramen is located at the antero-inferior aspect of the external auditory canal, posteromedial to the temporomandibular joint. The aim of this study is to define the prevalence and location of the foramen of Huschke.
METHODS: We retrospectively examined 207 cone beam CT (CBCT) studies (414 ears). We used flat panel detector (FPD)-based CBCT (New Tom FP; Quantitative Radiology, Verona, Italy) for imaging in our department. We noted the location of the foramen tympanicum and calculated its prevalence as a percentage.
RESULTS: We found a foramen tympanicum in 37 (17.9%) of 207 patients. This was unilateral in 24 patients (11.6%) and bilateral in 13 patients (6.3%). Mean axial diameter was 5 mm and mean sagittal diameter was 2 mm.
CONCLUSION: The foramen tympanicum is an uncommon disorder and is well demonstrated on CBCT. This is the first study to detect the foramen tympanicum using FPD-based CBCT.
U Tozoglu; F Caglayan; A Harorli
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Dento maxillo facial radiology     Volume:  41     ISSN:  0250-832X     ISO Abbreviation:  Dentomaxillofac Radiol     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-04-20     Completed Date:  2012-07-10     Revised Date:  2013-08-14    
Medline Journal Info:
Nlm Unique ID:  7609576     Medline TA:  Dentomaxillofac Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  294-7     Citation Subset:  D    
Department of Oral Diagnosis and Radiology, Ataturk University, Erzurum, Turkey.
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MeSH Terms
Cone-Beam Computed Tomography* / instrumentation
Ear, External / abnormalities*,  radiography*
Radiographic Image Enhancement / instrumentation
Temporomandibular Joint Disorders / etiology
X-Ray Intensifying Screens
Young Adult
Comment In:
Dentomaxillofac Radiol. 2012 Oct;41(7):619   [PMID:  22933530 ]

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