"T1: low signal intensity"
"FLAIR: suppression of fluid signal intensity"
"DWI: no restricted diffusion"
Expected headings
"Signal characteristics"
"The necessity of a cyst communicating with the ventricular system and/or subarachnoid space to earn the designation 'porencephaly' is a point of contention amongst neuroradiologists. Some authors use the term for cysts, whether or not communication exists, and thus there is significant overlap with encephalomalacia. Others reserve the term for cysts that communicate with at least one space, in which case they divide porencephalic cysts into internal (communicating with the ventricle) or external (communicating with the subarachnoid space). Still, others require communication with both."
"Porencephalic cysts appear as an intracranial cyst with a well-defined border and central attenuation equal to that of CSF. There is usually no mass effect on the adjacent parenchyma, although occasionally enlarging cysts do result in local mass effect. There is no enhancement after contrast injection and no solid component."
"Porencephalic cysts appear as an intracranial cyst with a well-defined border and central attenuation equal to that of CSF. There is usually no mass effect on the adjacent parenchyma, although occasionally enlarging cysts do result in local mass effect. There is no enhancement after contrast injection and no solid component."
"History and etymology"