Case Report: Filling Defect in Posterior Semicircular Canal on MRI With Balanced Steady-State Gradient-Echo Sequences After Labyrinthine Ischemia in the Common Cochlear Artery Territory as an Early Sign of Fibrosis.

What Researchers Did

Researchers described a rare case of posterior semicircular canal fibrosis following acute labyrinthine ischaemia in a 71-year-old man.

What They Found

They found that a 71-year-old man presented 12 days after acute vertigo and profound left-sided hearing loss, with imaging revealing a filling defect in his left posterior semicircular canal. This defect, consistent with fibrosis after labyrinthine ischaemia, was associated with persistent vestibular abnormalities despite mild hearing improvement.

Canadian Relevance

This study has no direct Canadian connection as it is a single case report from outside Canada.

Study Limitations

As a single case report, these findings cannot be generalized to a broader patient population.