The mechanism for potential vaccine damage could be the final common pathway for damage from other insults, which lead to similar pathology: edema, infiltration of the walls of veins, a perivenous
inflammatory reaction, and perivenous
The authors noted that after injection of acidic solutions, perivenous
oedema developed immediately.
When the hepatic tissues of the rats which were given paracetamol were examined, a moderate increase in the connective tissue, granular degeneration, necrotic cells, necrosis in the lobular center, early fibrosis in the perivenous
region and portal vein congestion with periportal area infiltration characterized with increased inflammatory cells at moderate and severe levels were observed (Figure 2).
Ophthalmoscopic examination revealed vitritis (+1), widespread perivenous
sheathing in the peripheral retina, and exudation in both eyes, but more pronounced in the right eye (Figure 1).
Infusion of saline (in the second lumen) following the contrast injection assists in the low dose CCTA initiative by improving contrast volume utilization, prolonging the peak of injection, and reducing perivenous
Nerve fibers are suitable for vessels of visceral autonomic ganglia and they form periarterial or perivenous
Chronic alcoholism is linked with hypoxia in hepatocytes, particularly the perivenous
Functional heterogeneity of periportal and perivenous
Hepatocytes in the perivenous
zones were more affected the those surround the periportal spaces.
Ethanol metabolism by the hepatocytes tends to increase oxygen uptake, resulting in the significant hypoxia of the perivenous
hepatocytes and release of the prostaglandin E2 and stimulation of the hepatocyte metabolic activity, which contributes to the onset of hypoxia .
Glutathione replenishment capacity is lower in isolated perivenous
than in periportal hepatocytes.
PML can be differentiated from many other demyelinating diseases by the absence of perivenous
inflammation and therefore a lack of enhancement on imaging.