Abstract
Objective: The clinical symptoms, audiological and imaging features of
unilateral cochlear nerve canal stenosis were reported. Method: The
clinical data of 12 patients with unilateral cochlear nerve canal
stenosis diagnosed in Beijing Friendship Hospital from January 2018 to
December 2019 were analyzed retrospectively, including age of onset,
clinical symptoms, signs, audiology, HRCT and MRI of temporal bone and
so on. Results: Twelve patients (6 males and 6 females) were identified
with unilateral cochlear nerve canal stenosis. All patients presented
with hearing loss and no other complaints. Among them, 2 patients were
accompanied with accessory ears and the rest had no positive signs. 11
patients had severe sensorineural hearing loss, 1 patient had normal
low-frequency hearing and high-frequency hearing loss. Imaging showed
that 9 patients were suspected atresia of the cochlear nerve canal, 3
patients were narrow. Conclusion: For patients with unilateral stenosis
of cochlear canal, early diagnosis and intervention should be carried
out as early as possible, and the healthy ears should be protected.