Hydatidiform Mole (Partial)

Hydatidiform Mole (Partial) is a rare condition that affects the placenta, the organ that connects a developing baby to the mother during pregnancy. It occurs when there is an abnormal fertilization of the egg, leading to the growth of abnormal tissue instead of a normal fetus. This condition can cause symptoms such as vaginal bleeding, an unusually large uterus, and high levels of the pregnancy hormone hCG. The abnormal tissue can sometimes form cysts that look like a bunch of grapes. It mainly affects the reproductive system and can impact the health of the pregnancy and the mother. Early diagnosis is important to manage the condition and prevent complications.

Hydatidiform Mole (Partial) is a type of gestational trophoblastic disease characterized by abnormal proliferation of trophoblastic tissue and the presence of some fetal tissue. It results from fertilization of a normal ovum by two sperm (dispermy), leading to a triploid karyotype (usually 69,XXY or 69,XXX). The pathology shows focal hydropic swelling of chorionic villi with focal trophoblastic hyperplasia, distinguishing it from a complete mole. Clinically, it presents with vaginal bleeding, uterine enlargement inconsistent with gestational age, and elevated serum hCG levels, though typically lower than in complete moles. Partial moles carry a lower risk of persistent trophoblastic disease or malignancy compared to complete moles but require careful follow-up. Diagnosis and management are critical to prevent progression to invasive mole or choriocarcinoma.