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A right temporal lobe cortical based lobulated cystic mass lesion with enhancing mural nodule.
The lesion measures 17 X 17 X 13 mm in its main CC and axial dimensions.
The solid nodule of the lesion shows isointense T1 and T2 signal with intense homogenous post-contrast enhancement. The cystic component of the lesion shows low T1 and high T2 signal with marginal post-contrast enhancement. The lesion is associated with mild vasogenic brain oedema with mild compression of the right lateral ventricle’s temporal horn and some effacement of cortical sulci.
A right temporal based cystic mass lesion with enhancing mural nodule, mostly representing pleomorphic xanthoastrocystoma (PXA). The differential includes is ganglioglioma or dysembryonic neuro-epithelial tumour (DNET).