Gestational Weeks (first observed) | Location of the mass | Maximum diameter (cm) | ultrasonograpy characteristics | Range | Internal blood flow | Postnatal diagnosis | Clinical management and prognosis |
---|---|---|---|---|---|---|---|
28 | Between the bladder and the rectum | < 3 | Isoechoic or hyperechoic, with myometrial echoes around | Smal, confined to the uterine cavity | undetected | physiological uterine effusion | subsides spontaneously after birth |
28+ 2 | between the bladder and the rectum | < 3 | Anechoic with myometrial echoes around | Small, confined to the uterine cavity | undetected | physiological uterine effusion | subsides spontaneously after birth |
33+ 5 | Lower back of the raised bladder, in front of the rectum up to the lower abdominal cavity | > 5 | filled with liquid and showed dense echogenic dots with thinner myometrial echoes around | Large, involving the cervix and vagina | undetected | iimperforate hymen with hydrometrocolpos | hymen puncture and open drainage led to good prognosis |