## Clinical Interpretation This patient presents with **bilateral symmetric high-frequency SNHL** — a classic pattern of age-related hearing loss (presbycusis). The absence of air-bone gap confirms sensorineural pathology. The bilateral, symmetric, and progressive nature rules out retrocochlear pathology. ## Key Diagnostic Features | Feature | Finding | Significance | |---------|---------|---------------| | Bilaterality | Bilateral SNHL | Rules out unilateral retrocochlear lesion | | Pattern | High-frequency loss | Typical of presbycusis | | Air-bone gap | <10 dB | Pure sensorineural, not conductive | | Weber test | No lateralization | Confirms symmetric hearing loss | | Associated symptoms | No vertigo | No vestibular involvement | ## Management Algorithm ```mermaid flowchart TD A[Bilateral symmetric SNHL]:::outcome --> B{Retrocochlear signs?}:::decision B -->|Yes: unilateral, asymmetric, or vertigo| C[MRI to rule out acoustic neuroma]:::action B -->|No: bilateral, symmetric, progressive| D[Presbycusis likely]:::outcome D --> E[Hearing aids + rehabilitation]:::action E --> F[Annual audiometric monitoring]:::action ``` **Key Point:** Bilateral symmetric SNHL without retrocochlear features (unilaterality, asymmetry, vertigo, tinnitus out of proportion) does NOT require neuroimaging. Presbycusis is the most common cause of SNHL in the elderly and is managed conservatively with hearing rehabilitation. **High-Yield:** The absence of air-bone gap definitively excludes conductive pathology. Bilateral symmetry excludes retrocochlear disease. This patient needs **hearing aids and audiological rehabilitation**, not imaging. **Clinical Pearl:** Annual audiometry helps track progression and guides hearing aid adjustment. Sudden unilateral SNHL or asymmetric progression would mandate urgent imaging and consideration of corticosteroids. 
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