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About: Koerner's septum     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:AnatomicalStructure, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: anatomical structure New Facet based on Instances of this Class

Koerner's septum is an anatomic boundary in the temporal bone formed by the petrosquamous suture between the petrous and squamosal portions of the mastoid air cells, at the anatomic level of the antrum. Along with the middle ear ossicles, it is usually eroded in middle ear cholesteatomas. Superiorly, this continues as the petrosquamous suture, a normal anatomic structure that can be mistaken for fractures on temporal bone CT.It is surgically important as it may cause difficulty in locating the antrum and the deeper cells and thus may lead to incomplete removal of disease at mastoidectomy.