[High-resolution CT findings of inner ear malformations with cerebrospinal fluid leakage].
OBJECTIVE
To describe the HRCT appearances of congenital inner ear malformations with cerebrospinal fluid leakage.


METHODS
Conducted a retrospective case review. The subjects comprised 11 patients who were decisively confirmed by HRCT and exploratory tympanotomy. The result of temporal bone computed tomography scans (HRCT) were analyzed.


RESULTS
Inner ear malformations were classified into 4 types according to HRCT findings. There were 4 patients with cochlear aplasia, 2 patients with common cavity anomaly, 2 patients with IP-I anomaly, and 3 patients with IP- II anomaly. Eight patients had defects in the lamina cribrosa of the internal auditory canal. The development and aeration in the mastoid of involved ears was normal. Soft tissues were seen near the oval window in all involved ears.


CONCLUSIONS
HRCT image has an important value in the diagnosis and treatment of inner ear malformations with cerebrospinal fluid leakage.
Chen
Shubin
S
Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, China.
Gong
Shusheng
S
Xian
Junfang
J
Zhao
Shouqin
S
Yu
Zilong
Z
D000293:Adolescent; D000328:Adult; D002558:Cerebrospinal Fluid Otorrhea / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D007758:Ear, Inner / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult