hydatid mole

hydatid mole
hydatidiform mole an abnormal pregnancy characterized by placental abnormality involving swollen chorionic villi, which form a large, grapelike mass of vesicles, by trophoblastic hyperplasia, and by loss of fetal blood vessels in the villi, with proliferation of the epithelial covering of the villi and dissolution and cystic cavitation of the avascular stroma. It is designated complete when all villi are swollen and fetal tissues are absent, and partial when only some villi are swollen and fetal tissues are present. Complete moles usually possess only paternal chromosomes, the result of fertilization of an oocyte lacking an active nucleus; partial moles are usually triploid and possess both maternal and paternal chromosomes. Called also cystic or vesicular m.

Complete hydatidiform mole.


Medical dictionary. 2011.

Look at other dictionaries:

  • hydatid mole — hydatidiform mole …   The new mediacal dictionary

  • hydatid mole — noun an abnormality during pregnancy; chorionic villi around the fetus degenerate and form clusters of fluid filled sacs; usually associated with the death of the fetus • Syn: ↑hydatidiform mole, ↑molar pregnancy • Hypernyms: ↑abnormality,… …   Useful english dictionary

  • hydatid pregnancy — pregnancy accompanied by formation of a hydatid mole …   Medical dictionary

  • Занос Пузырный, Хориоаденома (Hydatidiform Mole, Hydatid Mole, Vesicular Mole) — заболевание, при котором ворсинки хориона превращаются в пузырьки, заполненные светлой жидкостью. Они развиваются, когда на раннем сроке беременности в окружающей эмбриона оболочке (хорионе) начинают происходить дегенеративные изменения.… …   Медицинские термины

  • hydatid — 1. SYN: h. cyst. 2. A vesicular structure resembling an Echinococcus cyst. [G. hydatis, a drop of water, a hyatid] Morgagni h. SYN: vesicular appendages of epoophoron, under appendage. nonpedunculated h. SYN: appendix of …   Medical dictionary

  • Mole — 1. A pigmented spot on the skin (nevus). 2. A mass within the uterus (womb) formed by partly developed products of conception. * * * 1. SYN: nevus (2). 2. SYN: nevus pigmentosus. [A.S. mael (L. macula), a spot] 3. An intrauterine mass formed by… …   Medical dictionary

  • hydatidiform mole — hydatid mole; = vesicular mole a collection of fluid filled sacs that develop when the membrane (chorion) surrounding the embryo degenerates in early pregnancy with proliferation of the trophoblast. These sacs give the placenta the appearance of… …   The new mediacal dictionary

  • Hydatidiform mole — Classification and external resources Histopathogic image of hydatidiform mole (complete type). H E stain. ICD 10 O …   Wikipedia

  • Hydatidiform mole — A tumor that forms in the uterus as a mass of cysts resembling a bunch of grapes. Moles occur during the childbearing years. They do not spread outside of the uterus. However, a malignancy called choriocarcinoma may start from a hydatidiform mole …   Medical dictionary

  • hydatidiform mole — noun an abnormality during pregnancy; chorionic villi around the fetus degenerate and form clusters of fluid filled sacs; usually associated with the death of the fetus • Syn: ↑hydatid mole, ↑molar pregnancy • Hypernyms: ↑abnormality, ↑abnormalcy …   Useful english dictionary

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