Spontaneous resolution of prenatally diagnosed isolated pleural effusion: An unusual early sign of a newborn disease.

We present a case report of a fetus with a diagnosed pleural effusion in the first trimester on nuchal translucency scan. The effusion resolved spontaneously by 17 weeks of pregnancy. Toxoplasmosis, rubella, cytomegalovirus, herpes simplex (TORCH) - negative. Array comparative genomic hybridization (aCGH) - normal. Serial Doppler scans normal - no prenatal signs of anemia. Maternal antibodies against red cell antigens - negative. Delivery at term by cesarean section because of macrosomia. Neonate suffered from prolonged jaundice. At 3 weeks of life diagnosed with hereditary spherocytosis. Literature review shows that this may be the first connection between this disease and prenatal life.