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Repeated ultrasound tests could be used to identify an isolated gastric duplication cyst before surgery
  1. Akane Arayama,
  2. Kouki Tomari,
  3. Tomotada Takayama and
  4. Takashi Matsuoka
  1. General Pediatrics, Okinawa Prefectural Nanbu Medical Center & Children's Medical Center, Haebaru-cho, Okinawa, Japan
  1. Correspondence to Dr Kouki Tomari; kouki.tom.1228{at}


A toddler girl was diagnosed with intra-abdominal simple cyst in the splenic flexure at the gestational period. Due to a severe fever that persisted for 6 days, she was admitted to the emergency room. The diagnosis of intraperitoneal cyst infection was made after contrast-enhanced CT revealed an enlarged cyst and a heterogeneous contrast effect on the cyst wall. A double-wall sign was observed on the cyst wall during continuous ultrasound follow-up, which led to the preoperative diagnosis of the cyst as a duplication cyst. The double-wall sign and cyst peristalsis were identified via successive ultrasound examinations to support the cyst diagnosis. Identifying a duplication cyst based solely on symptoms alone is difficult because the condition may present in different ways.

  • Paediatrics
  • Paediatric Surgery
  • Gastrointestinal surgery

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  • Contributors AA and KT were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms, and critical revision for important intellectual content. AA, KT, TT and TM gave final approval of the manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.