A case of acute acquired obstructive hydrocephalus in a cat with suspected ischaemic cerebellar infarct

Raimondi, Francesca; Lourinho, Filipa; Scott, Harry; Shihab, Nadia

The following sequences with a slice thickness of 3 mm were acquired: T2-weighted (T2W) fast spin echo (FSE) images in the sagittal ( A single, focal cerebellar lesion that was isointense to grey matter on T1W images, hyperintense on T2W and T2W FLAIR images and on T2*W gadolinium-enhanced images, with no contrast uptake after IV contrast medium administration, was noted in the right rostral aspect of the cerebellum. There was a sharp demarcation between the lesion and adjacent normal cerebellar parenchyma. On sagittal midline images, the lesion involved the rostral cerebellum ( Figure 1 ). On transverse images, the lesion was shown to be affecting the right cerebellum and had an upturned wedge-shaped appearance, radiating outwards dorsally and extending to the dorsal surface of the cerebellum and ventrally towards the fourth ventricle ( Figure 2 ).