Pleomorphic xanthoastrocytomas (PXA) are an uncommon circumscribed astrocytic tumour found in young patients and can be WHO grade 2 or 3. They are often considered part of the heterogeneo...
The calcarine sulcus is an anatomical landmark located at the caudal end of the medial surface of the brain of humans and other primates. Its name comes from the Latin "calcar" meaning "spur". It is very deep, and known as a complete sulcus.
Hypertrophic olivary degeneration (HOD) is a rare condition characterised by a unique pattern of trans-synaptic degeneration. Typically it is caused by a lesion in the brainstem/cerebellu...
Internuclear opthalmoplegia (INO) is an impairment in lateral conjugate gaze (both eyes looking toward one side), caused by a lesion in the medial longitudinal fasciculus (MLF), and associated with…
A new paper identifies Possible Risk Allele for developing a type of glioma
OBJETIVOS: Descrever as principais diferenças fisiopatológicas entre procedimentos...
Pleomorphic xanthoastrocytomas (PXA) are an uncommon circumscribed astrocytic tumour found in young patients and can be WHO grade 2 or 3. They are often considered part of the heterogeneo...
Intracranial haemorrhage is a collective term encompassing many different conditions characterised by the extravascular accumulation of blood within different intracranial spaces. A simple categori...
Pleomorphic xanthoastrocytomas (PXA) are an uncommon circumscribed astrocytic tumour found in young patients and can be WHO grade 2 or 3. They are often considered part of the heterogeneo...
Haemorrhage on MRI has highly variable imaging characteristics that depend on: the age of the blood the type of haemoglobin present: oxy-, deoxy- or met- whether or not the red blood cell...
The hot cross bun sign refers to the MRI appearance of the pons when T2 hyperintensity forms a cross on axial images, representing selective degeneration of transverse pontocerebellar tra...
This case illustrates typical appearances of a central neurocytoma - a diagnosis which can usually be made with a high degree of certainty pre-operatively.
The tau sign refers to the unusual configuration of signal voids in the presellar ICA and in a persistent trigeminal artery, as viewed on parasagittal MR images.The combination of the vertical and ...
