Mass effect – intracranial pathology

Mass effect – intracranial pathologyCreated OnMay 4, 2020Last Updated OnMay 5, 2020byadmin You are here: Main Radiology Mass effect - intracranial pathology < All Topics Table of Contents Intracranial pathological processes may cause mass effect – displacement or compression of the brain Mass effect can be caused by intracranial masses, haemorrhage, and oedema Stages of mass effect Effacement of the sulci adjacent to the lesion is followed by partial or complete effacement of the adjacent ventricles Displacement of midline structures Effacement of the contralateral ventricles and sulci Sulcal effacement A space occupying lesion – below the level of this CT slice – is causing mass effect with effacement of the sulci over the whole left cerebral hemisphere Compare with the contralateral side which shows normal sulci Ventricular effacement This image shows a small intracerebral bleed with surrounding oedema The combination of the blood and oedema is causing mass effect: effacement of the adjacent sulci and partial effacement of the adjacent lateral ventricle The left hemisphere structures appear normal Shift of midline structures – Post-contrast CT brain This image shows an intracerebral tumour (glioma) which, along with surrounding oedema, is causing mass effect The right hemisphere sulci are effaced The right lateral ventricle is totally effaced Structures normally found in the midline are deviated to the contralateral side *Some of the image photo is taken from web, we do not own this, it’s for knowledge sharing purpose.

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