Anemia due to massive chronic foetomaternal hemorrhage

We report a case of massive chronic foetomaternal hemorrhage. The labor cou rse was uncomplicated. The newborn presented with pallor, tachypnea, and mo derate hepatosplenomegaly. The initial hemoglobin was 6.5 g/dl. The Kleihau er-Betke stain on a maternal blood sample was 12%, which is equivalent to 5 40 ml of fetal blood in the maternal circulation. A clot in the umbilical v ein was demonstrated sonographically. The possible association of foetomate rnal hemorrhage with umbilical vein thrombosis is discussed.