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Bilateral homonymous superior quadrantanopia after traumatic attempts to remove a cockroach impacted in the external auditory canal.

Abstract
Visual field defects typically caused by lesions in the optic nerve or optic chiasm may be caused indirectly by subdural haematomas. A 61-year-old man survived transtentorial herniation caused by subdural haematomas that resulted from shaking his head in an attempt to remove a cockroach impacted in his external auditory canal. Bilateral incomplete posterior cerebral artery infarction of both inferior tips of the occipital lobe resulted in bilateral superior quadrantanopia. There are no previous reports of tentorial herniation causing this permanent outcome.
AuthorsWan Yi Ng, Brian E Chua, Todd A Hardy, David Wechsler, Stephen W Reddel
JournalThe Medical journal of Australia (Med J Aust) Vol. 194 Issue 8 Pg. 420-2 (Apr 18 2011) ISSN: 1326-5377 [Electronic] Australia
PMID21495947 (Publication Type: Case Reports, Journal Article)
Topics
  • Animals
  • Cockroaches
  • Ear Canal
  • Foreign Bodies (complications, therapy)
  • Hematoma, Subdural (complications, diagnosis, therapy)
  • Hemianopsia (diagnosis, etiology, therapy)
  • Humans
  • Male
  • Middle Aged

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