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Bubbles in the colon
  1. Jia Hao Law1,
  2. Gwyneth Shook Ting Soon2,
  3. Ker-Kan Tan1
  1. 1 Division of Colorectal Surgery, Department of Surgery, National University Hospital, Singapore
  2. 2 Department of Pathology, National University Hospital, Singapore
  1. Correspondence to Dr Jia Hao Law, NUH, Singapore 119074; law.jiahao{at}

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A 65-year-old man with no medical history underwent screening colonoscopy, which showed numerous cystic lesions with normal overlying mucosa in the right colon (figure 1). Biopsies yielded unremarkable superficial mucosa. CT scan of the thorax, abdomen and pelvis did not reveal any other significant pathology, but showed small locules of extraluminal air along the site of biopsy. The patient remained clinically well. In view of the diagnostic dilemma and concerns of minor perforation, the patient was counselled …

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  • Contributors JHL planned the study, wrote the manuscript and submitted the manuscript. STGS contributed to the writing of the manuscript. K-KT planned the study and contributed to the writing 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.

  • Competing interests None declared.

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