CTA spot sign

Case contributed by Dr Christen Barras

Presentation

90 minutes post onset left sided weakness

Patient Data

Gender: Male
Modality: CT

Non-contrast CT (A) performed demonstrates a small right basal ganglia intracerebral haemorrhage. CTA source image demonstrates punctate focus of contrast enhancement within the haemorrhage 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 haemorrhage. Follow-up 24 hour non-contrast CT (C) demonstrates haematoma growth. 

Case Discussion

The CTA Spot sign is defined as unifocal or multifocal contrast enhancement within an intracerebral haemorrhage, 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
Case created: 20th Aug 2013
Last edited: 30th Sep 2015
Inclusion in quiz mode: Excluded

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