Prenatal Diagnosis of Fetal Hydranencephaly: a Case Report

Abstract

Prenatal Diagnosis of Fetal Hydranencephaly: a Case Report

Dennopporn Sudjai MD

* Department of Obstetrics and Gynecology, BMA Medical College and Vajira Hospital

A case of third gravida 20-year-old pregnant woman with gestational age of 38 weeks is present. Her prenatal sonographic screening demonstrated single female fetus with normal for age of biparietal diameter (99.5 mm). The head circumference was 357 mm., which was > 95 percentile of the fetal age of 38 weeks. Intracerebral sonographic findings showed absence of cerebral hemispheres, which was replaced by fluid. The thalamus and cerebellum appeared normal. Other parameters measurements, structural and placental morphology were within normal limit. The diagnosis was consistent with hydranencephaly. A female baby, weight 3500 g., was delivered by cesarean section at 39 weeks gestation because of cephalopelvic disproportion (CPD). Brain computed tomography (CT scan) was performed after birth, which confirmed the diagnosis. Follow up until 3 months of age, the baby was healthy with good feeding and no convulsion was detected.

Keywords: fetal hydranencephaly, prenatal diagnosis, ultrasonography

Vajira Med J 2010 ; 54 : 193-198