Tag Archive | stroke

Lobar haemorrhage – an intracerebral bleed (haemorrhagic stroke)…

Lobar haemorrhage – an intracerebral bleed (haemorrhagic stroke) that occurs superficially within the cerebral lobes. In contrast to hypertensive haemorrhages which occur deep within the brain, primary lobar haemorrhages occur superficially due to cerebral amyloid angiopathy. They typically occur in elderly patients and as with any haemorrhage, it is important to consider the possibility of an underlying tumour or vascular malformation. 

This short video tutorial is courtesy of Dr Frank Gaillard and the Radiology Channel.

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Hypertensive haemorrhage – high blood pressure is the most…

Hypertensive haemorrhage – high blood pressure is the most common cause of primary intracerebral haemorrhage (also known as haemorrhagic stroke). Typical locations include:

This short educational video comes to you courtesy of Dr Frank Gaillard and the RadiologyChannel.

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Insular ribbon sign – refers to loss of the normal insular…

Insular ribbon sign – refers to loss of the normal insular cortex grey-white differentiation and is one of the earliest imaging sign of middle cerebral artery territory infarction. The insular cortex is located along the Sylvian fissure overlying the external capsule where a ‘ribbon’ of normal cortex should be appreciable (red arrows). In the setting of MCA infarction, cytotoxic oedema leads to hypoattenuation such that the normal insular ribbon is no longer visible (blue arrows).

Case on the left shows a very early infarct (within the first few hours) while the case on the right shows a more established infarct (greater than 4 hours old).

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