Fig. 3From: Intestinal volvulus in the pump twin of a twin reversed arterial perfusion (TRAP) sequence after laser therapy at 18 weeks: a case reportUltrasound images comparing normal intestines and different signs of fetal bowel obstruction. a Normal intestines at 26 weeks of gestation, white arrows. b Ileal atresia in a fetus with gastroschisis at 30 weeks of gestation. c Double bubble sign (white arrows; S, stomach; D, duodenum) in a fetus with duodenal atresia at 28 weeks of gestation. dWhite arrows, ascites and meconium pseudocyst at 22 weeks of gestationBack to article page