منابع مشابه
[Pneumatization of the petrous apex].
Pneumatization of the petrous apex was investigated in 226 subjects without middle ear disease by means of target imaging CT. The degree of pneumatization of all subjects was 32.7% (148/452 ears), but no difference in degree was revealed with distinction of bilateral ears or between sexes. In 148 ears with pneumatization of the petrous apex, a higher degree of pneumatization was found in larger...
متن کاملAnatomical Factors Influencing Pneumatization of the Petrous Apex
OBJECTIVES Aim of the present study was to define the relationship between petrous apex pneumatization and the nearby major anatomical landmarks using temporal bone computed tomography (CT) images. METHODS This retrospective, Institutional Review Board-approved study analyzed CT images of 84 patients that showed normal findings bilaterally. Pneumatization of the petrous apex was classified us...
متن کاملAspergillosis of the petrous apex.
We present the case of an immunocompetent man who presented with multiple and progressive cranial nerve palsies. The cause was found to be aspergillosis of the petrous bone, arising as a result of chronic fungal otitis media. Despite treatment with local excision and systemic anti-fungal therapy, he died after suffering a subarachnoid haemorrhage. Diagnosis rests upon prompt radiological imagin...
متن کاملPetrous Apex Lesions
Situated lateral and adjacent to clivus. Petrous apex bisected by Internal auditory canal in coronal plane Anteriorly into peritubal area and posteriorly into perilabrynthine area. Anterior to the internal auditory meatus that is wedged between the posterior border of the greater wing of the sphenoid and the basilar part of the occipital bones Its borders and boundaries are marked by major bloo...
متن کاملPetrous apex cephaloceles.
BACKGROUND AND PURPOSE Petrous apex cephaloceles (PACs) are uncommon lesions that are usually incidental but may be symptomatic. We reviewed MR and CT studies in 10 patients with PACs to identify characteristic imaging features that facilitate their diagnosis. METHODS MR and CT studies from 10 patients with PACs were reviewed retrospectively. In each case the PAC was characterized by lesion c...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1994
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.97.450