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| Prenatal Ultrasonographic Findings of Cloacal Anomaly |
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| Mi Jin Song, M.D. - |
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| Department of Radiology, Samsung Cheil Hospital , Sungkyunkwan University School of Medicine |
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| PURPOSE : To evaluate the ultrasonographic characteristics of a rare malformation comples, Cloacal anomaly on
prenatal ultrasonography.
MATERIALS and METHODS : From March 1991 to July 2001, eight cases with the persistent cloaca (4 cases in female
and 1 case in male) and cloacal exstrophy (3 cases) diagnosed by prenatal ultrasound examination were included,
and all of them were pathologically confirmed by autopsy. One radiologist retrospectively analyzed the prenatal
sonographic images, including the urinary bladder, kidney, pelvic cyst, abdominal wall defect and amount
of amniotic fluid.
RESULTS : The ultrasonographic diagnosis was established at 21.8±7.8 weeks of gestation. The prenatal ultrasonographic
findings of the persistent cloaca were absent bladder (n=2), distended bladder (n=2) and small thick
bladder (n=1). Sonography of the kidney showed normal (n=2), hydronephrosis (n=1), dysplasia (n=1) and unilateral
hydronephrosis with absent contralateral kidney (n=1). Four fetuses showed septated pelvic cyst; three
fetuses, oligohydramnios. The prenatal ultrasonographic findings of cloacal exstrophy included absent bladder
(n=3), normal kidney (n=1), hydronephrosis (n=1) and absent kidney (n=1). All fetuses with cloacal exstrophy
had abdominal wall defect while two of them had oligohydramnios.
CONCLUSION : A prenatal diagnosis of persistent cloaca can be confidently made when there is septated pelvic cyst
combined oligohydramnios, sediments within the cyst and intraluminal calcifications. Cloacal exstrophy should
be included in diagnosis if there is a low abdominal wall defect with absent urinary bladder. |
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| Keyword : Fetus, abnormalities Fetus, US |
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pdf파일 : 185-190 송미진.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2002 ; 21 (3) : p.185-190
