The mass effect increases together with infarction and intensity of vasogenic edema
Brain edema is generally classified as cytotoxic and vasogenic edema
In summary, this study provides the first instance of the induction of a vasogenic edema
model of rat retina by a photochemical reaction.
In these patients, vasogenic edema
developing on a cytotoxic background in relation with different causes has been blamed (8).
The treatment of first choice for patients developing vasogenic edema
includes the reduction of blood pressure and supportive measures, whereas the treatment of patients suffering from acute stroke who developed cytotoxic edema and infarction requires a more aggressive therapy, applying the treatment protocols for other etiologies, for instance, subarachnoid hemorrhage with vasospasm .
12 In our study, as similar to the literature, DWI was found to be superior due to cytotoxic edema in early stage in most of the patients, and FLAIR images were superior in late- stage because it was replaced by vasogenic edema
d) Axial FSE T2-weighted imaging demonstrates the mass to be heterogeneous iso/hypointense tumor with surrounding vasogenic edema
suggesting increasing cellularity.
It was stated that is necessary higher intensity stimulations, more than 12 mA, in that patients with vasogenic edema
and severe neurological deficit to obtain positive stimulation (5).
PRES is a neurotoxic state associated with a unique pattern of brain vasogenic edema
seen on CT or MRI.
In vast majority of cases it is vasogenic edema
, presented by high signal intensity on T2 weighted imaging and fluid attenuated inversion recovery (FLAIR), increased apparent diffusion coefficient values (ADC) and hypointensity or no change of intensity on diffusion weighted imaging (DWI) [2, 3, 13, 33, 34].
The vasogenic edema
surrounding brain tumors results from the flow of fluid into the extracellular space of the brain parenchyma through an incompetent blood-brain carrier.
Disruption of BBB is a critical event during cerebral ischemia, followed by passive diffusion of water leading to vasogenic edema
and secondary brain injury.
Diffussion- weighted imaging discriminates between cytotoxic and vasogenic edema
in a patient with eclampsia.
PRES is a clinically recognizable entity that presents with neurological signs and symptoms (headaches, altered consciousness, visual abnormalities and seizures) in conjugation with the unique neuroimaging findings of vasogenic edema
involving the posterior circulation1.
There was vasogenic edema
involving the underlying left temporal lobe (Figure-1).