Interactive Image Libraries
Atlas of normal horizontal serial sections
This atlas of temporal bone images was developed using serial sections of the right ear of a 61-year old female with no known otologic history. The cause of death was amyotrophic lateral sclerosis. The postmortem time was 6 hours. The temporal bone was fixed in Heidenhain Susa, decalcified using trichlorocetic acid, embedded in celloidin and sectioned in the axial plane at a thickness of 20 microns. Every tenth section was stained with hematoxylin and eosin. The temporal bone is in an excellent state of histologic preservation and preparation. The structures of the middle and inner ears as well as the bony labyrinth, mastoid and petrous apex are all normal.
The library contains 43 numbered sections from superior to inferior. The interactive program allows the viewer to examine each section at magnifications ranging from 1x to 40x. Sections are annotated. This is a valuable tool for learning the histologic anatomy of the temporal bone.
Atlas correlating ct scans and histologic anatomy of normal horizontal serial sections
This atlas contains a series of paired images correlating the radiologic and histologic anatomy of the normal temporal bone.
The radiologic images were acquired from a 7 year old male with no history of otologic disease. They were acquired on a multidetector Siemens CT scanner in the axial plane with 0.5 mm collimation. The images have been arranged from superior to inferior.
The light microscopic images were acquired from the right ear of a different individual (75 year old male) with no known history of otologic disease. The cause of death was coronary artery disease. The postmortem time was 6 hours. The temporal bone was fixed in 10% formalin, decalcified using EDTA, embedded in celloidin and serially sectioned at a thickness of 20 microns. Sectioning was done in the axial plane to correspond with the same plane used in the CT scans. The major landmark used in both sets of images was the bony lateral semicircular canal: the plane of section was parallel to the plane of the lateral canal. The atlas displays every 20th section stained with hematoxylin and eosin.
The radiologic and histologic images have been paired to show the anatomy at approximately the same level. The viewer can magnify each image by clicking in it. Use the right click button on your mouse to download each image to your desktop.