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Sigmoid sinus diverticulum without pulsatile tinnitus occurring concurrently with chronic otitis media mucosal type
Ruuzeno Kuotsu1, Ajay Mallick2, Manaswita Roy2
1ENT and Head and Neck Surgery, All India Institute of Medical Sciences-Kalyani, Kalyani, West Bengal, India ruuzenokuotsu@gmail.com.
BMJ Case Reports
|July 3, 2024
Summary
Sigmoid sinus diverticulum, a rare vascular issue, typically causes pulsatile tinnitus. This study reports a unique case without tinnitus, linked to a safe type of chronic otitis media.
Area of Science:
- Otolaryngology
- Vascular Surgery
- Neurosurgery
Background:
- Sigmoid sinus diverticulum (SSD) is a rare vascular anomaly.
- SSD is commonly associated with pulsatile tinnitus.
- It can arise from chronic otitis media squamous type (unsafe) due to cholesteatoma eroding the sigmoid sinus plate.
Observation:
- This report details an unusual case of SSD.
- The patient had chronic otitis media mucosal type (safe type).
- Crucially, the patient did not present with pulsatile tinnitus.
Findings:
- Concurrent SSD and chronic otitis media mucosal type (safe type) can occur without pulsatile tinnitus.
- This presentation challenges typical diagnostic assumptions for SSD.
- Cholesteatoma is not always the cause of sigmoid sinus plate dehiscence in SSD.
Implications:
- Highlights the need for broader diagnostic considerations for SSD.
- Suggests imaging may be crucial even without classic tinnitus symptoms.
- Informs management strategies for rare otitis media and vascular anomaly associations.
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