
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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mastoidectomy (mas″toid-ek´tә-me) surgical removal of mastoid cells; the most frequent indication for this is chronic infection in the mastoid process as a complication of chronic otitis media. The extent of surgery depends on extent of destruction. A radical mastoidectomy involves removal of diseased portions of the mastoid process as well as the incus and malleus of the middle ear and the tympanic membrane. The degree of hearing loss following mastoidectomy depends on the extent of surgery.

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