Two antenatal diagnosis of hydrocolpos and hydrometrocolpos.
Department of Gynecology, Hôpital Félix Guyon, 97400 Saint-Denis, Reunion, France
Imperforate hymen is usually detected in the neonatal period or later, when the child presents the physical signs of lower abdominal cysts, and a bulging membrane at the introitus.
Nethertheless, imperforate hymen can be suspected during antenatal period, when we discover an isolated hydrocolpos.
We described two cases of hydrocolpos, discovering during the third trimester.
Case report 1:
Mrs. M., 36 years old, has one healthy girl and no consanguinity with her husband. Family history was unremarkable.
The first and second ultrasound were normal (normal nuchal translucency, 1.7 mm / 60 mm ; Normal triple test, 1/2000). The fetal gender is female.
But at 34 weeks, the third scan showed an abnormal structure near the bladder (Figure 1-3) which is covered by two umbilical arteries (Figure 4, 5). The suspected diagnosis was an ovarian cyst, hydrocolpos or mesenteric cyst. An MRI was planned, but the patient delivered the next day.
The diagnosis of hydrometro-colpos was, in fact, confirmed by a postnatal sonography. Indeed, imperforate congenital hymen with mild hydrometro-colpos was present (Figure 6, 7). The kidney were normal. A drainage was performed sucessfully (hymenectomy). Six month later, the baby is well.
Figure 1-3: An abnormal structure near the bladder .