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Hydatidiform Mole

Several forms of hydatidiform mole: partial mole, complete mole and persistent gestational trophoblastic tumour. Many of these tumours arise from a haploid sperm fertilizing an egg without a female pronucleus (the alternative form, an embryo without sperm contribution, is called parthenogenesis).

The tumour has a "grape-like" placental appearance without enclosed embryo formation. Following a first molar pregnancy, there is approximately a 1% risk of a second molar pregnancy.

ACT Pathology Description

Macroscopic: The specimen is an enlarged uterus (140x140x100mm, weighing 725g) with right and left ovaries and fallopian tubes attached. Opening the uterus shows a cavity filled with a grape-like mass. The wall of the uterus is thickened and fibrous.
Microscopic: The sections show an interlacing structure within the fibrous lesion. Sections of the cystic contents show numerous dilated and mucoid degenerate proliferative chorionic villi.

Links: Hydatidiform Mole | Placenta Abnormalities | Placenta Development

Image Source

ACT Pathology, used with permission Professor Julia Potter (Director of Pathology).

ACT Pathology - Uterus benign fibromyoma hydatidiform mole

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:38, 8 October 2015		800 × 739 (73 KB)	Z8600021 (talk \| contribs)
	11:02, 18 August 2009		400 × 369 (29 KB)	MarkHill (talk \| contribs)	Hydatidiform mole Several forms of hydatidiform mole: partial mole, complete mole and persistent gestational trophoblastic tumor. (More? mole types). Many of these tumours arise from a haploid sperm fertilizing an egg without a female pronucleus (the alt

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Copyright holder	Copyright ACT Pathology 2004
Software used	Adobe Photoshop CS6 Macintosh
IIM version	2

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 ==Hydatidiform Mole==
-Several forms of hydatidiform mole: partial mole, complete mole and persistent gestational trophoblastic tumor. (More? mole types). Many of these tumours arise from a haploid sperm fertilizing an egg without a female pronucleus (the alternative form, an embryo without sperm contribution, is called parthenogenesis). The tumour has a "grape-like" placental appearance without enclosed embryo formation. Following a first molar pregnancy, there is approximately a 1% risk of a second molar pregnancy.
+Several forms of hydatidiform mole: partial mole, complete mole and persistent gestational trophoblastic tumour.
+Many of these tumours arise from a haploid sperm fertilizing an egg without a female pronucleus (the alternative form, an embryo without sperm contribution, is called parthenogenesis).
+The tumour has a "grape-like" placental appearance without enclosed embryo formation. Following a first molar pregnancy, there is approximately a 1% risk of a second molar pregnancy.