cyst (sist)

An abnormal collection of fluid in a sharply defined area unprovided with a channel for outflow. C's po e a distinct membrane usually lined with cubical, columnar, glandular, ependymal, squamous, or composite epithelium or endothelium, alveolar c. A c. connected with the alveolus of a tooth, apoplectic c. A false c. formed around a cerebral effusion of blood, blood c. A c. formed around effused blood and containing blood or its remains. l)rancliial c. A c. of the neck formed by defective closure of an embryonic branchial cleft, bursal c. A c'like enlargement of a bursa, butter c. A retention c. of the mammary gland containing a butter like material, cho les tea tomato us c. See cho les tea tom a. coccygeal c. Any c. growing from or in the ti ues about the coccyx, compound c. See multilocular c. colloid C. A c. containing colloid material. composite c. A c. whose wall is formed of more than one kind of epithelium and which contains glands secreting the cystic fluid, conjunctival c. A rare form of c. usually appearing as a sharply defined, spheroidal or hemispheroidal prominence, about as large as a pea and transparent, occasionally met with near the corneal margin. It is congenital and distinct from the true dermoid c. Cowper's c, cowperian c. A c. formed in the vulvovaginal gland or its duct, cutaneous c, cuticular c. 1. A c. developed in the skin. 2. See dermoid c. c. of the broad ligament. A c. springing from the ovary or the epoophoron and developed between the layers of the broad ligament of the uterus, c. of the canal of Nuck. A c. of the peritoneal pouch accompanying the round ligament of the uterus, or the proce us vaginal is in the male. c. of the corpus luteum. The blood c. in the earlier stages of pregnancy, c. of Gartner's body. A c. in the broad ligament or vaginal wall from distension of the duct above, c. of the jaw. See dentigerous c. c. of the miillerian duct. A c. of the distal or anterior end of the above duct in the male, at the globus major of the epididymis, producing the so-called se ile hydatid, c. of the wolffian body. A c. forming in the remains of the wolffian body, in the ovary, or in the duct in the broad ligament of the uterus, or in the vagina, or in the free outer tubes, called the par oophoron or organ of Rosenmiiller.