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Petrous apex cholesterol granuloma involving the sphenoid sinus

By Dirk Korbmacher, MD, Martin Lehmann, MS, Hans-Björn Gehl, MD, Jörg Ebmeyer, MD, and Holger Sudhoff, MD, PhD

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Source URL: http://www.entjournal.com/article/petrous-apex-cholesterol-granuloma-involving-sphenoid-sinus