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  • Title: Intrauterine midgut volvulus without malrotation: diagnosis from the 'coffee bean sign'.
    Author: Park JS, Cha SJ, Kim BG, Kim YS, Choi YS, Chang IT, Kim GJ, Lee WS, Kim GH.
    Journal: World J Gastroenterol; 2008 Mar 07; 14(9):1456-8. PubMed ID: 18322966.
    Abstract:
    Fetal midgut volvulus is quite rare, and most cases are associated with abnormalities of intestinal rotation or fixation. We report a case of midgut volvulus without malrotation, associated with a meconium pellet, during the gestation period. This 2.79 kg, 33-wk infant was born via a spontaneous vaginal delivery caused by preterm labor. Prenatal ultrasound showed dilated bowel loops with the appearance of a 'coffee bean sign'. This patient had an unusual presentation with a distended abdomen showing skin discoloration. An emergency laparotomy revealed a midgut volvulus and a twisted small bowel, caused by complicated meconium ileus. Such nonspecific prenatal radiological signs and a low index of suspicion of a volvulus during gestation might delay appropriate surgical management and result in ischemic necrosis of the bowel. Preterm labor, specific prenatal sonographic findings (for example, the coffee bean sign) and bluish discoloration of the abdominal wall could suggest intrauterine midgut volvulus requiring prompt surgical intervention.
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