Traumatic perilymphatic fistula with stapes luxation into the vestibule and pneumolabyrinth: a case report

Traumatic perilymphatic fistula with disruption of the annular ligament and stapedovestibular dislocation is extremely rare. Leakage of perilymph can cause inner ear damage and dysfunction. Treatment remains controversial due to the limited number of reported cases in the literature. Here we report the case of a penetrating ear trauma causing a perilymphatic fistula with stapedovestibular dislocation, stapes displacement into the vestibule and pneumolabyrinth. We discuss clinical aspects, imaging features, management, and functional outcomes.