Cysts may form within any tissue in the body. Cysts within the lung generally are air-filled, while cysts involving the lymph system or kidneys are fluid-filled. Certain parasites, such as trichinosis, dog tapeworm (Toxocara canis), and echinococcus, can form cysts within the muscles, liver, brain, lungs, and eyes.
Cysts are common on the skin. They develop as a result of infection, clogging of sebaceous glands, or around foreign materials.
1.In an animal or plant, a thin-walled, hollow organ or cavity containing a liquid secretion; a sac, vesicle, or bladder. 2.In the body, a membranous sac or cavity of abnormal character containing fluid.
a cyst is a closed sac, havn a distinct membrane n division compared to the nearby tissue. it may contain air, fluids or semi solid material. a collection of pus is clld an absess, nt a cyst. once formed,a cyst goes way on its own or it could b removed surgically