Monaural tinnitus from a contralateral inferior colliculus hemorrhage

Audiol Neurootol. 2009;14(1):35-8. doi: 10.1159/000152854. Epub 2008 Sep 4.

Abstract

A 48-year-old man presented with sudden right ear tinnitus and showed no other otoneurologic signs or symptoms. Auditory brainstem response revealed prolonged III-V interpeak latencies from stimulating either ear. MRI revealed a small, circumscribed lesion of the left inferior colliculus, probably from an acute hemorrhage leading to a small cavernous malformation. Circumscribed lesions of the inferior colliculus are rare with no prior reports of contralateral tinnitus.

Publication types

  • Case Reports

MeSH terms

  • Acute Disease
  • Cerebral Hemorrhage / complications*
  • Cerebral Hemorrhage / pathology
  • Evoked Potentials, Auditory, Brain Stem
  • Functional Laterality*
  • Humans
  • Inferior Colliculi / blood supply*
  • Inferior Colliculi / pathology
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Tinnitus / etiology*