American Journal of Neuroradiology, Vol 16, Issue 4 663-668, Copyright © 1995 by American Society of Neuroradiology
ARTICLES |
Dermoids of the eustachian tube: CT and MR findings with histologic correlation
SS Kollias, WS Ball Jr, EC Prenger and CM Myers 3rd
Department of Radiology, Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Two patients with congenital dermoids of the eustachian tube presented with recurrent otitis media and chronic otorrhea resistant to antimicrobial therapy. CT demonstrated fat density, homogeneous lesions, filling and expanding the eustachian tube. On MR, signal from the lesions was consistent with fat, and the relationship with the internal carotid artery was better delineated than by CT. Microscopically, the masses consisted of a conglomeration of ectodermal and mesodermal elements.
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