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Pneumolabyrinth associated with perilymph fistula
Shih-Hung Lo1, Yung-Chien Huang, Pa-Chun Wang
1Department of Otolaryngology, Cathay General Hospital, 280, Jen-Ai Rd., Taipei, Taiwan, ROC.
Chang Gung Medical Journal
|December 4, 2003
Summary
Pneumolabyrinth, or air in the inner ear, is rarely diagnosed. This case highlights high-resolution CT for diagnosing pneumolabyrinth and perilymph fistula, leading to successful surgical repair.
Area of Science:
- Otolaryngology
- Radiology
- Neurosurgery
Background:
- Pneumolabyrinth, characterized by air in the inner ear spaces, is an uncommon finding.
- Perilymph fistula (PLF) involves a tear in the membranes separating the middle and inner ear.
- Diagnosing inner ear air requires advanced imaging techniques.
Observation:
- A 24-year-old woman presented with fluctuating sensorineural hearing loss and disequilibrium.
- Symptoms followed a direct facial trauma (open-handed slap).
- High-resolution computed tomography (HRCT) revealed air bubbles in the cochlea.
Findings:
- The HRCT diagnosis of pneumolabyrinth was confirmed.
- Exploratory tympanotomy identified a perilymph fistula on the affected side.
- Surgical repair of the fistula was performed.
Implications:
- This case demonstrates the utility of HRCT in diagnosing pneumolabyrinth.
- Early surgical intervention for perilymph fistula can be highly effective.
- Prompt diagnosis and treatment can restore hearing and balance function.