Vol.103 No.1 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 103 No. 1 January 2010
A Case Report; Tinnitus due to an Idiopathic Bone
Defect of the External Auditory Canal
Yoshio Masaki
(Masaki Jibika Clinic)
I report on a case of an idiopathic bone defect of the external auditory canal. A 62-year-old female patient presented with tinnitus and aural fullness in her right ear during biting. I confirmed the projection of the anterior wall of the external auditory canal during biting, and the projection was retracted when she opened her mouth. Computed tomography examination revealed a partial defect of the anterior wall of the bony external ear canal. I thought that this defect was caused by the failure of the foramen of Huschke to close during development.
Key words :tinnitus, bone defect, external auditory canal, aural fullness, foramen of Huschke