A 32-year-old woman presented to our department with a 10-month history of right-sided intermittant otorrhagia. There was no history of hearing loss or pulsatile tinnitus. Otomicroscopic examination revealed a reddish mass arising from the right antero-superior portion of bony canal wall, which measured about 1 cm in diameter. The tympanic membrane seemed to be uninvolved. A computed tomography...

The authors used high-resolution computed tomography (HRCT) for studying 52 congenitally malformed ears in 45 children between five and 10 years of age. In six children the malformations were bilateral. The malformations clinically manifested as microtia, atresia of the external auditory canal and conductive deafness. Analyzing anatomical details and pathological changes on HRCT axial sec...

Department of Radiology, Otolaryngology-Head and Neck Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea. Received September 3, 2003 ; Accepted February 13, 2004 Address reprint requests to : Ki-jun Sung, M.D., Department of Radiology, Wonju College of Medicine, Yonsei University, Wonju Christian Hospital, 162 Ilsan-dong, Wonju, Kangwon-do, 220-701, Korea, Tel. 82-33-741-1475 Fa...

OBJECTIVE To investigate a rare anomaly of the internal auditory canal known as a patulous canal and its relationship to hearing impairment. METHODS High-resolution computed tomographic scans of the temporal bones of patients who presented between August 2001 and August 2002 were reviewed. The patients' medical charts were evaluated for age, sex, and hearing impairment, and the computed tomog...

DESCRIPTION A 40-year-old female patient presented with a progressive hearing loss in her right ear during the last 3 months. She did not have otorrhea or otalgia. She did not report any attack of vertigo or tinnitus. On physical examination, the right external auditory canal (EAC) was completely occluded by a hard mass, which was fixed and covered with wax. Pure tone audiometry revealed a seve...

This investigation is based on measurements of 60 macerated adult European skulls from the Alexander-Ecker Collection at the Anatomy Department of the University of Freiburg. Computer tomographical (CT) and anatomical measurements were compared to assess the accuracy of the CT representation of osseous structures. Nine structures were examined: the optic canal; the superior orbital fissure; the...

Nonfilling of the normal internal auditory canal on computed tomographic (CT) gas cisternography was observed in seven (11%) of 62 cases in a retrospective study of three series of gas cisternograms. The meatal surface of the fluid-filled canal was convex and pointed, simulating a small acoustic neuroma. A meniscus effect at the gas-cerebrospinal fluid interface was considered the probable caus...