Article Type

Original Study


Objectives:1- Describe the anatomy of the Prussak's space (Ps) utilizing the recentlyavailable data due to the incorporation of endoscopes in its studying.2- Evaluate the previously described theories about its development, physi-ology, aeration and pathophysiology of its diseases.Methods:Fifty-five temporal bones were dissected, and the anatomical details werestudied utilizing an operating microscope and the otoendoscopes.Results:Being a 3D sagittal space located laterally and superficially to the tympanumand formed by mucosal and bony walls, four types of Ps could be distinctbased on the pathways of their aeration and communication with thevariousspaces and areas of the tympanum as was demonstrated by the developmentof the mucosal folds, pouches and pathways. First type and themostcommon (71%) was aerated solely retrogradely via the posteriorpouchof von Troeltsch. Second type (2%) was only aerated via the anteriorpouchof von Troeltsch. Third type (2%) was only aerated through a specialsuperiormucosal pathway. Spaces classified under the fourth Ps type(25%)were aerated through combined or multiple pathways of the abovetypes. Conclusions:Psunlikely to what has been usually thought, has different types. Althoughthedifferences between these types might look trivial, they mostly contributemajorly in the development and progress of the space pathological conditions.This might play a role in the explanation of the Ps isolated infectionsandalso the mechanism of retraction pockets and cholesteatoma formationandthe modes of their extension.

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Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.