Review for 10.1186/s12876-020-01475-w (2020)

Reviewer’ s report
Title: Fishbone Foreign Body Ingestion in Duodenal Papilla: A Cause of Abdominal Pain
Resembling Gastric Ulcer
Version: 0Date: 23 Mar 2020
Reviewer's report:
Please include all comments for the authors in this box rather than uploading your report as an
attachment. Please only upload as attachments annotated versions of manuscripts, graphs,supporting materials or other aspects of your report which cannot be included in a text format.Please overwrite this text when adding your comments to the authors.1] Phrases such as "and so on" (page 1; line 8) and "other symptoms" (page 1; line 21) are notnecessary.2] Why was a CT scan obtained in an asymptomatic patients? What sequelae were you trying toidentify or exclude?3] If an endoscopic ultrasound was considered, why was it elected to not perform it.4] The "Discussion" section needs significant work. There is little discussion, rather it is more of arestatement of the case report.5] How does this case differ from previous case reports of foreign bodies impacted in the ampulla?In addition to the previous foreign body (a tooth pick) found in the ampulla, I was able to find 9more case reports between 1981 and 2019 in PubMed. Most (7) in adults; involving organicmaterial (3), bone (2), and metallic devices (4).6] Figure 4 is not needed; Figures 1 & 3 can be condensed to a single figure; including the images1B, 1C and 3B.
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NoDoes the work include the necessary controls?
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Unable to assessAre the conclusions drawn adequately supported by the data shown?
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Not relevant to this manuscript
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Not suitable for publication unless extensively editedDeclaration of competing interests
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