Sonographic nystagmus: a case report of lateral semicircular canal benign paroxysmal positional vertigo.

ABSTRACT:

Background

Nystagmus, a critical diagnostic sign of vertigo and dizziness, reflects disturbances in the vestibular system. The accurate characterisation of nystagmus aids in distinguishing between peripheral and central causes, such as benign paroxysmal positional vertigo (BPPV) and stroke, respectively. Traditional methods for assessing nystagmus involve visual inspection or the use of Frenzel goggles. However, in cases where patients are unable to keep their eyes open owing to severe vertigo, such an evaluation becomes challenging. To date, sonographic imaging has not been used as a diagnostic method for nystagmus. We present a case in which ocular ultrasonography was used to assess nystagmus and aid in the diagnosis of BPPV.

Case presentation

A 56-year-old woman presented

SUBMITTER: Munekata Y 

PROVIDER: S-EPMC12521668 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature