Department of Ultrasound, Shengjing Hospital of China Medical University, No.36 Sanhao St, Shenyang, 110004, Liaoning, China.
Department of Ultrasound, Shenyang Women's and Children's Hospital, Shenyang, Liaoning, China.
BMC Pregnancy Childbirth. 2021 May 11;21(1):370. doi: 10.1186/s12884-021-03843-0.
Congenital megaduodenum is a rare disorder; however, its prenatal diagnosis has not been reported previously. We report the case of an abdominal cystic mass in a fetus that was later diagnosed as megaduodenum.
An abdominal cystic mass was found during ultrasonography of a fetus at 11 weeks of gestation. The mass progressively enlarged with gestation. The amniotic fluid volume decreased and then returned to normal. During the last prenatal ultrasound examination, the mass was observed communicating with the stomach; therefore, duodenal dilation was suspected. Finally, the patient was diagnosed with megaduodenum caused by a developmental defect in the nerve plexus.
Congenital megaduodenum is a differential diagnosis of massive fetal abdominal cystic masses. Ultrasound examinations of such masses communicating with the stomach may help determine the diagnosis.
先天性巨十二指肠是一种罕见的疾病，但以前没有报道过其产前诊断。我们报告了一例胎儿腹部囊性肿块的病例，该病例后来被诊断为巨十二指肠。
在胎儿 11 周妊娠的超声检查中发现腹部囊性肿块。肿块随妊娠逐渐增大。羊水体积减少，然后恢复正常。在最后一次产前超声检查中，观察到肿块与胃相通，因此怀疑存在十二指肠扩张。最终，患者被诊断为神经丛发育缺陷引起的先天性巨十二指肠。
先天性巨十二指肠是胎儿腹部巨大囊性肿块的鉴别诊断之一。与胃相通的此类肿块的超声检查有助于确定诊断。
