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Labyrinthine dehiscence in a child
Angelisa M Paladin1, Grace S Phillips, Molly E Raske
1Department of Diagnostic Radiology, Seattle Children's Hospital and Regional Medical Center, 4800 Sandpoint Way NE, Seattle, WA 98105, USA.
Insights
A rare case of semicircular canal dehiscence was found in a 4-year-old boy with hearing loss. This finding, typically seen in adults, highlights unique pediatric clinical and research implications.
Area of Science:
- Otolaryngology
- Pediatric audiology
- Neuroimaging
Background:
- Semicircular canal dehiscence is a condition affecting the inner ear, often associated with auditory and vestibular symptoms.
- While documented in adults, its occurrence in pediatric populations is infrequently reported.
Observation:
- A 4-year-old male presented with bilateral mixed hearing loss, more severe in the left ear.
- A computed tomography (CT) scan of the temporal bone was performed to investigate the hearing loss.
Findings:
- The temporal bone CT scan revealed a partial dehiscence of the right posterior semicircular canal.
- This anatomical finding indicates an abnormal opening in the bony labyrinth of the inner ear.
Implications:
- This case represents a unique pediatric presentation of semicircular canal dehiscence.
- The findings suggest the need for considering this condition in the differential diagnosis of pediatric hearing loss and warrant further research into its clinical and developmental impact.
Abstract:
A 4-year-old boy presented with moderate to profound mixed hearing loss in the right ear and moderate to severe mixed hearing loss in the left ear, prompting a temporal bone CT scan. Images revealed partial dehiscence of the right posterior semicircular canal. Semicircular canal dehiscence and its associated clinical syndrome have been described in adults. We present this case as a unique finding in a child and discuss the possible clinical and research implications.