Vol.96 No.10 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 96 No.10 October 2003
Diagnosis of Ossicular Lesion by Three-Dimensional CT;
Report of 2 Cases
Katsura Hakamada and Yoshinori Takizawa
(Kakegawa City Hospital)
Tomoyuki Hoshino
(Hamamatsu University School of Medicine)
We report two cases of ossicular lesions correctly diagnosed with three-dimensional CT (3D-CT). The first patient was a 28-year-old male, who had hearing loss in the right ear after a sneeze. The other patient was a 50-year-old male complaining of left ear hearing loss after a head injury. Almost normal hearing was obtained after tympanoplasty type IV-c (case 1) and partial stapedectomy (case 2). Both patients underwent operations by transcanal approach.
We were able to make exact diagnoses before operation by 3D-CT in both cases, and 3D-CT reconstruction of the operation field was suitable for modeling of the operations. These cases suggest that 3D-CT is useful not only as a method for diagnosing ossicular lesions, but also as a method for preoperative surgical planning.
Key words : ossicular lesion, 3D-CT, transcanal approach