A giant early second-trimester placental chorioangioma associated with isolated proteinuria and histopathologically confirmed placental insufficiency, a novel association: A case report.

We present a case of giant chorioangioma at 18 weeks of gestation leading to fetal hypertrophic cardiomyopathy without other evidences of fetal volume overload and late-onset isolated proteinuria. Oligohydramnios developed at term and placental insufficiency was confirmed on histopathological examination and a nonanemic nonthrombocytopenic normal weight healthy baby was delivered.