Utility of spinal MRI in children with anorectal malformation |
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Authors: | Mikiko Miyasaka Shunsuke Nosaka Yoshihiro Kitano Katsuhiko Ueoka Yoshiyuki Tsutsumi Tatsuo Kuroda Toshiroh Honna |
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Institution: | (1) Radiology, National Centre for Child Health and Development, 2-12-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan;(2) Paediatric Surgery, Saitama Children’s Medical Centre, Saitama, Japan;(3) Paediatric Surgery, National Centre for Child Health and Development, Setagaya-ku, Tokyo, Japan;(4) Paediatric Urology, National Centre for Child Health and Development, Setagaya-ku, Tokyo, Japan |
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Abstract: | Background The association between spinal cord anomalies and imperforate anus is well recognized. Until now, the incidence of tethered
cord has been assumed to be higher in patients with high-type imperforate anus. However, recent reports suggest that tethered
cord is as common in patients with a low lesion as in those with a high lesion.
Objective To review the incidence of spinal cord anomalies in those with a low lesion and those with a high (including intermediate)
anorectal malformation (ARM), and to determine the best diagnostic imaging strategy.
Materials and methods A group of 50 consecutive patients with postoperative ARM and in whom spinal MRI had been performed were identified retrospectively.
We reviewed and compared the following factors between those with a high lesion and those with a low lesion: (1) clinical
symptoms, (2) spinal cord anomalies, and (3) vertebral anomalies.
Results The incidence of spinal cord anomalies was no different between those with a high lesion and those with a low lesion, and
spinal cord anomalies were present regardless of the presence of vertebral anomalies or symptoms.
Conclusion Owing to the high incidence of spinal cord anomalies in patients with imperforate anus, MRI is the best imaging tool for detecting
such anomalies regardless of the level of the lesion. |
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Keywords: | Anorectal malformation MRI Children |
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