A Case of Vertigo from Nose-blowing Due to Superior Semicircular Canal Dehiscence Suspected by CT Scan

Abstract

Recently there have been cases of vertigo patients with Superior Semicircular Canal Dehiscence Syndrome. In this present report, we describe a 40 y.o. female patient with vertigo after nose-blowing. Although a vertigo patient with nose-blowing is often diagnosed as having a perilymph fistula, our patient was diagnosed as having left Superior Semicircular Canal Dehiscence Syndrome by interview, clinical course findings and CT findings. She did not suffer hearing loss, tinnitus nor any abnormality in the electric nystamography test. The eustachian tube function test revealed the stenosed type. Advice to be careful when blowing her nose helped her vertigo disappear especially as she did not wish to have any operative procedures.