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A hyperechoic or echogenic bowel pattern is a prenatal ultrasound finding that suggests an intestinal obstruction caused by abnormal meconium. Among fetuses who have hyperechoic bowel on prenatal ultrasound, about 1 in 10 will have CF. These children with CF may be born with meconium ileus. In pregnancies where there is evidence of fetal bowel obstruction on prenatal ultrasound, both parents can be tested to find out if they carry one of the genes known to cause CF. If both parents carry a CF mutation, amniocentesis may be offered to determine if the baby has CF. Sometimes an echogenic bowel is simply normal and disappears by the third trimester. |
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