" /> Hydatidiform mole, recurrent, 1 - CISMeF





Preferred Label : Hydatidiform mole, recurrent, 1;

Symbol : HYDM1;

CISMeF acronym : CHM; HYDM; HYDM1;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Hydatidiform mole, complete; Hydatidiform mole; CHM; Gestational trophoblastic disease; HYDM;

Description : A hydatidiform mole is an abnormal pregnancy characterized by hydropic placental villi, trophoblastic hyperplasia, and poor fetal development. Familial recurrent hydatidiform mole is an autosomal recessive condition in which women experience recurrent pregnancy losses, predominantly complete hydatidiform mole (CHM). However, unlike sporadic CHMs, which are androgenetic with 2 paternal chromosome complements, CHMs associated with familial recurrence are genetically biparental in origin with both a maternal and a paternal contribution to the genome. Other pregnancy losses in this condition include partial hydatidiform mole, stillbirths, ectopic pregnancies, early neonatal deaths, and miscarriages, some of which may be undiagnosed molar pregnancies. Normal pregnancies are extremely rare in families with this condition (summary by Fallahian et al., 2013). - Genetic Heterogeneity of Recurrent Hydatidiform Mole Another form of recurrent complete hydatidiform mole (HYDM2; 614293) is caused by mutation in the KDHC3L gene (611687) on chromosome 6q13.;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the NACHT domain-, leucine-rich repeat-, and PYD-containing protein-7 gene (NALP7, 609661.0001);

Prefixed ID : #231090;

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02/05/2025


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