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Antenatal small-bowel volvulus without malrotation: ultrasound demonstration and discussion of pathogenesis

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We present a case of volvulus without malrotation in a twin fetus where serial antenatal US assisted in the diagnosis and ensured prompt postnatal surgical treatment. When a fetal subumbilical intestinal mass is seen, changing its echogenicity from complex to cystic, and associated with progressive proximal small-bowel obstruction and/or bowel perforation, small-bowel volvulus should be included in the differential diagnosis.

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Correspondence to Sigrid Jéquier.

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Presented as a poster at the 4th IPR, Paris, May 2001

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Jéquier, S., Hanquinet, S., Bugmann, P. et al. Antenatal small-bowel volvulus without malrotation: ultrasound demonstration and discussion of pathogenesis. Ped Radiol 33, 263–265 (2003).

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