Cyst

(sist) [nvcrig, a pouch]. A cavity containing fluid and surrounded by a capsule. C, Blood. See Hematoma. C, Cutaneous. See C.y Dermoid. C, Daughter, any one of the small cysts developed by secondary growth from the walls of a large cyst. C, Dentigerous, one containing teeth. C, Dermoid, a congenital cyst containing bone, hair, teeth, etc. C, Echinococcus, a cyst formed in various ti ues and organs of man by the larva of the Taenia echinococcus of the dog, taken into the stomach. C, Extravasation, a cyst formed by the encapsulation of a hemorrhage into the ti ues. C, Follicular, one due to the occlusion of the duct of a small follicle or gland. C, Hydatid. See C, Echinococcus. C, Meibomian. See Chalazion. C, Mucous, a retention-cyst containing mucus. C, Multilocular, one composed of many separate compartments. C, Retention, one that is due to the retention of the secretion of a gland, in consequence of closure of the duct, as in mucous or sebaceous cysts. C, Sebaceous, a retention-cyst ofa sebaceous gland. C, Softening, one due to encapsulation of the fluid after liquefaction-necrosis. C, Sublingual. See Ranula. C, Unilocular, one having but a single cavity. 218