Post-Abortal Placental Polyp Masquerading Uterine Leiomyoma: A Case Report

Placental polyp is a organized mass of retained bits of placental tissue following delivery, which is hyalinized during their prolonged retention. It is a rare entity, histologically composed of necrotic and hyalinized chorionic villi. These placental masses present within days to weeks following an abortion or delivery of a term placenta. The usual clinical presentations are abnormal uterine bleeding and small rise and detectable titers of serum β-human chorionic gonadotropin (βHCG). Here we reported a case of 25 years lady P1+1 presented with the chief complaint of intermittent vaginal bleeding since her last medical termination of pregnancy 3 months ago along with uterine enlargement. Ultrasonographic finding showed in homogenous hypoechoic intrauterine lesion with cystic degeneration suggestive of myoma. So myomectomy was planned, and during myomectomy endometrial cavity was opened and a polypoidal mass was found mostly confined to endometrial cavity. The mass was removed and uterus was repaired in layers. There was a strong suspicion of placental polyp or decidual cast on clinical examination of the mass, and for that serum β-human chorionic gonadotropin level was done and it was found to be slightly elevated. Hystopathologic finding came as degerated chorionic villi with necrosis and inflammation suggestive of placental polyp.