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Prenatal diagnosis of fetal hydrometrocolpos secondary to a cloacal anomaly by magnetic resonance imaging
Author(s) -
Hayashi S.,
Sago H.,
Kashima K.,
Kitano Y.,
Kuroda T.,
Honna T.,
Nosaka S.,
Nakamura T.,
Ito Y.,
Kitagawa M.,
Natori M.
Publication year - 2005
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.2584
Subject(s) - medicine , uterus didelphys , magnetic resonance imaging , abdomen , cloaca , genitourinary system , vagina , anatomy , prenatal diagnosis , fetus , radiology , uterus , obstetrics , pregnancy , genetics , biology
Fetal female urogenital anomalies are often difficult to evaluate by ultrasonography, especially in late gestation. We report a case of fetal hydrometrocolpos detected at 35 weeks of gestation. Ultrasonography revealed a large retrovesical septate hypoechogenic mass in the fetal abdomen, however the sonographic findings were inconclusive. Magnetic resonance imaging (MRI) confirmed that the abdominal mass was fluid‐filled with a mid‐plane septum in the midline posterior to the bladder, and showed a connection to the dilated uterus that was duplicated. These findings were consistent with a diagnosis of hydrometrocolpos with septate vagina and uterus didelphys. The neonate showed abdominal distension, ambiguous genitalia and anal atresia with a single perineal opening. Hydrometrocolpos was secondary to a urethral type of cloacal anomaly. Aspiration of the mass and a colostomy were performed on the first postnatal day, followed by anorectoplasty at 19 months of age. MRI is a useful complementary tool for assessing fetal urogenital anomalies when ultrasonography is inconclusive. Copyright © 2005 ISUOG. Published by John Wiley & Sons, Ltd.

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