A Rare Manifestation of Giant Chorangioma with Brain Disorder

Background: Chorangioma are benign vascular tumors of the placenta that are nontrophoblastic in nature.The clinical importance of these tumors correlates with their size, with chorangioma larger than 4 cm being linked to complications for both the mother and the fetus.Case description: We present a rare case of 20-year-old primigravida female patient who presented to us at 35 weeks of gestation with a positive sickling test history and pain in the abdomen.Ultrasound showed a single live fetus with polyhydramnios, and a distinct hypoechoic lesion adjacent to the umbilical cord insertion site along the subchorionic plane of the placenta, suggestive of a chorangioma.Histopathological examination confirmed the placental chorangioma.The uniqueness of this case report lies in the presence of a hypoplastic left transverse sinus and sigmoid sinus following delivery without any fetal complications.However, such accidental diagnoses may cause a lot of complications during and after childbirth.Conclusion: It is crucial to implement routine and timely antenatal care to detect and manage potential complications effectively.