What is edema?

Edema is buildup of interstitial fluid in tissues, and can accumulate in body cavities form effusions, anasarca is generalized edema marked by swelling of subcutaneous tissues and accumulation of fluid in body cavities. types/causes (hemodynamic [congestion due to venous stasis, elevated capillary pressure, post-radiation lymphatic stenosis], inflammatory [infectious, toxic]) Note that hemodynamic transudate edema is low in plasma proteins.