Cerebral edema early stroke or hypoxia, cardiac arrest, and pseudotumor cerebri. During an ischemic stroke, a lack of oxygen and glucose leads to a breakdown of the sodium-calcium pumps on brain cell membranes, which in turn results in a massive buildup of sodium and calcium intracellularly. This causes a rapid uptake of water and subsequent swelling of the cells. It is this swelling of the individual cells of the brain that is seen as the main distinguishing characteristic of cytotoxic edema, as opposed to vasogenic edema, wherein the influx of fluid is typically seen in the interstitial space rather than within the
Dropsy (fish disease) Dropsy (fish disease) Dropsy is a disease in fish caused by the buildup of fluid inside the body cavity or tissues. As a symptom rather than a disease, it can indicate a number of underlying diseases, including bacterial infections, parasitic infections, or liver dysfunction. Because dropsy is a symptom of an illness, its cause may or may not be contagious. However, it is standard practice to quarantine sick fish to prevent spreading the underlying cause to the other fish in the tank community. By the time a disorder reaches the point of causing dropsy, it can often be fatal and