ArticleBMC pregnancy and childbirth2020
The application of prenatal ultrasound in the diagnosis of congenital duodenal obstruction.
Article in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 15 citations in OpenAlex.
- Prenatal Ultrasound Progression and Postnatal Retrospective Analysis of a Case of Small Intestinal Atresia with Volvulus.Diagnostics (Basel, Switzerland) · 2026Article
- Mortality in prenatally detected congenital small bowel obstructions: systematic review and meta-analysis.AJOG global reports · 2026Review
- Cross-sectional imaging features of duodenal obstruction: A case series highlighting etiologic diversity.Radiology case reports · 2026Article
- Clinical insights from a rare case of neonatal upper gastrointestinal obstruction complicated by H-Type tracheoesophageal fistula: case report and review of the literature.BMC pediatrics · 2025Review
- Clinical Analysis of Congenital Duodenal Obstruction and the Role of Annular Pancreas.Medicina (Kaunas, Lithuania) · 2025Article
- Evaluation of prenatal and postnatal ultrasonography for the diagnosis of fetal double bubble sign.Quantitative imaging in medicine and surgery · 2024Article
- "Keyboard sign" and "coffee bean sign" in the prenatal diagnosis of ileal atresia: A case report.World journal of clinical cases · 2024Article
- Diamond-shaped versus side-to-side anastomotic duodenoduodenostomy in laparoscopic management of annular pancreas in children: a single-center retrospective comparative study.Translational pediatrics · 2023Article
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Authors and funding
7 authors at 1 institution in 1 country.
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Abstract
backgroundThe purpose of this research is to summarize the prenatal ultrasound characteristics of congenital duodenal obstruction (CDO), especially in the diagnosis of duodenal diaphragm and annular pancreas. At present, few researchers have summarized the specific ultrasound features of duodenal diaphragm and annular pancreas.
methodsIn this study, a retrospective analysis of 40 patients diagnosed with CDO between January 2016 and December 2019 was carried out. Data on the diagnosis, ultrasound images and outcomes of the patients were gathered, and the features of the patients were analyzed.
resultsThe results showed that there were 17 patients (42.5%) of congenital duodenal diaphragm, all with a 'rat tail' sign on the ultrasound images. Moreover, there were 4 patients (10.0%) of CDO caused by annular pancreas, all with a 'pliers' sign on the ultrasound images. We summarized the imaging features of the 'rat tail' sign and the 'pliers' sign.
conclusionThe main conclusion of this study was that the 'rat tail' sign could be used as an indirect ultrasound feature to diagnose duodenal diaphragm. The 'pliers' sign could be used as a direct ultrasound feature in the diagnosis of annular pancreas in CDO.
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