CTA spot sign

Case contributed by A/Professor Christen Barras


90 minutes post onset left sided weakness

Patient Data

Gender: Male

Non-contrast CT (A) performed demonstrates a small right basal ganglia intracerebral hemorrhage. CTA source image demonstrates punctate focus of contrast enhancement within the hemorrhage that was discontinuous from adjacent vessels on multi-planar reformats, and not present on the pre-contrast image, the CTA 'spot sign', reflecting active, dynamic hemorrhage. Follow-up 24 hour non-contrast CT (C) demonstrates hematoma growth. 

Case Discussion

The CTA Spot sign is defined as unifocal or multifocal contrast enhancement within an intracerebral hemorrhage, discontinuous from adjacent normal or abnormal vessels and not present on pre-contrast imaging. It is an independent predictor of intracerebral hemorrhage growth and poor outcome. 

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Case information

rID: 24481
Published: 20th Aug 2013
Last edited: 14th Aug 2019
Inclusion in quiz mode: Excluded

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