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Prenatal diagnosis of anterior sacral meningocele
Author(s) -
Sumi A.,
Sato Y.,
Kakui K.,
Tatsumi K.,
Fujiwara H.,
Konishi I.
Publication year - 2011
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.8852
Subject(s) - medicine , prenatal diagnosis , cyst , vagina , magnetic resonance imaging , sacrum , anatomy , surgery , pregnancy , radiology , fetus , genetics , biology
Anterior sacral meningocele is an extremely rare condition and there has been only one previous report of a prenatal diagnosis. We report the case of a 36‐year‐old primigravida who was referred following detection of a huge fetal pelvic cyst on routine ultrasound examination at 19 + 4 weeks' gestation. Neither fetal ultrasound nor magnetic resonance imaging (MRI) at 20 + 5 weeks' gestation could detect communication between the cyst and the spinal cord. Because extension of the pear‐shaped cyst through the pelvic diaphragm down to the perineum was reminiscent of dilated vagina and uterine cervix, a tentative diagnosis of hydrometrocolpos secondary to imperforate hymen was considered. On follow‐up MRI at 33 + 5 weeks' gestation, a narrow stalk connecting the pelvic cyst and the spinal canal through the anterior sacral foramen was clearly delineated, allowing us to reach the prenatal diagnosis of anterior sacral meningocele. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.