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At least 307 records · Page 17Linked to original sources
PubMed1989

[Surgical anatomy of the retrotympanum: on 25 temporal bones].

Based on 25 anatomical dissections of the petrosal bone, the author presents a study on the surgical anatomy of the retrotympanum and all its constituent parts. This area often considered as the blind spot of closed techniques is explored in a more exact and complete manner with the aid of a posterior tympanotomy which is not always as easy to carry out as we might be led to believe. A description of all the parts of the retrotympanum with special attention to the sinus tympani and all the facial relations make up the main part of this study, to which the different variants found during these dissections needs to be added. This will perhaps make it possible to remove all reluctance for carrying out posterior tympanotomies as completely as possible. This article is completed by photographs of these dissections with explanatory schemas.

Ear, Middle↗
PubMed1982

Computerized tomography of the temporal bone.

Computerized tomography is acquiring an increasingly important role in the radiographic assessment of the temporal bone. In the latest generation of CT scanners, spacial resolution has been reduced to 0.1 cu mm and slice thickness to 1.5 mm. The main advantages of computerized tomography in comparison to multidirectional tomography are the improved contrast of the images and above all the clear demonstration of soft tissue structures and masses within or adjacent to the temporal bone. The following three applications of computerized tomography will be discussed: 1. Evaluation of intratemporal soft tissue masses. Computerized tomography allows differentiation of fluid filled from solid masses and vascular tumors. 2. Assessment of lesions extending outside the temporal bone or into the temporal bone from adjacent structures. In these cases CT will demonstrate the temporal bone involvement and the presence and extension of the intra or extra cranial component of the lesion. 3. Study of the cerebellopontine angle. Computerized tomography with infusion and combined with pneumocisternography comprise the procedure of choice for the diagnosis of acoustic neuromas and other lesions occurring in this area.

Brain Neoplasms↗