Distinguishing neuroimaging features in patients presenting with visual hallucinations

T. T. Winton-Brown, A. Ting, R. Mocellin, D. Velakoulis, Frank Gaillard

Research output: Contribution to journalReview ArticleResearchpeer-review

7 Citations (Scopus)

Abstract

Visual hallucinations are relatively uncommon presentations in medical and psychiatric clinics, where they are generally regarded as a marker of possible underlying "organic" brain disease. Thus, patients with visual hallucinations are often referred for imaging of the brain. This article presents a pragmatic approach for the radiologist reviewing such imaging. Because conditions that can present with visual hallucinations are legion, a familiarity with the features of the hallucinations themselves, which can serve as clues to the underlying cause, can be helpful in interpreting such cases. We consider the nature of visual hallucinations and the mechanisms underlying their formation. We then provide a framework to guide the search for their cause, first in terms of focal lesions along the visual pathway and then global conditions affecting >1 region.

Original languageEnglish
Pages (from-to)774-781
Number of pages8
JournalAmerican Journal of Neuroradiology
Volume37
Issue number5
DOIs
Publication statusPublished - May 2016
Externally publishedYes

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