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Prenatal diagnosis of in utero fetal gastrointestinal bleeding.

A case of prenatal gastrointestinal bleeding is presented. Abnormal echogenic amniotic fluid was detected by routine ultrasound during the third trimester of a normal pregnancy. The diagnosis and postnatal implications of antenatal hemorrhage are discussed, with a review of the literature. To our knowledge, this is the first case to be diagnosed in utero and resulting in preterm delivery.