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Updated: Feb 8, 2026
07:02
Autologous Blood Injection to Model Spontaneous Intracerebral Hemorrhage in Mice
Published on: August 24, 2011
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Spontaneous Labyrinthine Hemorrhage: A Case Series.
Esther X Vivas1, Nicholas J Panella1, Kristen L Baugnon2
11 Department of Otolaryngology-Head & Neck Surgery, Emory University, Atlanta, Georgia, USA.
Summary
Magnetic resonance imaging (MRI) can diagnose labyrinthine hemorrhage, often causing profound, irreversible sudden sensorineural hearing loss (SNHL). Abnormal FLAIR signals on MRI indicate inner ear injury and poor prognosis.
Area of Science:
- Neurology
- Radiology
- Otolaryngology
Background:
- Labyrinthine hemorrhage is a rare inner ear condition.
- Diagnosis often relies on clinical presentation and imaging.
- Understanding MRI findings is crucial for prognosis.
Purpose of the Study:
- To characterize patients with suspected labyrinthine hemorrhage.
- To describe audiometric outcomes and MRI signal patterns.
- To establish MRI as a diagnostic tool for inner ear injury.
Main Methods:
- Retrospective review of 11 patients with suspected labyrinthine hemorrhage.
- Analysis of temporal bone MRI, including T1 and FLAIR sequences.
- Assessment of patient demographics, comorbidities, and hearing outcomes.
Main Results:
- Most patients (10/11) presented with unilateral sudden sensorineural hearing loss (SNHL).
- 82% of patients with SNHL had non-serviceable hearing post-diagnosis.
- Abnormal FLAIR signals on MRI were reliable indicators of inner ear injury.
Conclusions:
- This study presents the largest cohort of radiographically diagnosed labyrinthine hemorrhage.
- Profound unilateral SNHL is a common outcome, often with poor recovery.
- Abnormal FLAIR MRI signals are a reliable marker for inner ear injury and prognosis.
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