Isolated vestibular syndromes due to brainstem and cerebellar lesions.
Dizziness/vertigo is the most common symptoms of posterior circulation strokes. Isolated vestibular symptoms and signs without other neurologic deficits have been found in infarctions involving the brainstem and cerebellum. In the brainstem, infarctions responsible for isolated vestibular syndrome are usually restricted to the dorsal portion that contains the vestibular nucleus and the nucleus prepositus hypoglossi. Cerebellar lesions confined to the flocculus, tonsil, and nodulus also produce isolated vertigo and imbalance. The cerebellar peduncle, as a conduit between the brainstem and cerebellum, can also produce isolated vestibular syndrome when damaged. Recognition of these isolated central vestibular syndromes aids in defining the function of each structure and in localizing the involved neural structures based upon the vestibular and ocular motor findings.
Department of Neurology, Kyungpook National University School of Medicine, Daegu, Korea.
Sung-Hee
SH
Kim
Research Administration Team, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Korea.
Hyo Jung
HJ
Kim
Department of Neurology, College of Medicine, Seoul National University, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Korea. jisookim@snu.ac.kr.
Ji-Soo
http://orcid.org/0000-0002-1508-2024
JS
Kim
D001927:Brain Diseases / Q000150:complications* / Q000473:pathology; D001933:Brain Stem / Q000473:pathology*; D002531:Cerebellum / Q000473:pathology*; D006801:Humans; D015837:Vestibular Diseases / Q000209:etiology*
Brainstem; Cerebellum; Dizziness; Vertigo stroke