Risk of confirmatory bias: Parafalcine meningioma mimicking acute subarachnoid haemorrhage

Risk of confirmatory bias: Parafalcine meningioma mimicking acute subarachnoid haemorrhage

We present the case of a 44-year-old hypertensive lady with a history of headache and collapse whose initial CT demonstrated parafalcine hyperdensity. We attributed this to spontaneous subarachnoid haemorrhage, but subsequent imaging revealed an anterior parafalcine meningioma. Confirmatory bias may...

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Bibliographic Details
Main Authors: Alhassan I.H. Mohmed, Ashwin Kumaria, Barrie White
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Interdisciplinary Neurosurgery
Subjects:
Hypertensive
Collapse
Parafalcine
Subarachnoid
Meningioma
Haemorrhage
Online Access:http://www.sciencedirect.com/science/article/pii/S2214751921000670
Description
Summary:We present the case of a 44-year-old hypertensive lady with a history of headache and collapse whose initial CT demonstrated parafalcine hyperdensity. We attributed this to spontaneous subarachnoid haemorrhage, but subsequent imaging revealed an anterior parafalcine meningioma. Confirmatory bias may have played a role. The purpose of this report is to highlight and learn from this error in judgement while presenting an unusual clinical case of meningioma masquerading as haemorrhage.
ISSN:2214-7519

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