Review for 10.1186/s12876-022-02267-0 (2022)

Reviewer’s report
Title: 
Signet-ring cell carcinoma of the duodenal bulb
presenting with gastrointestinal hemorrhage: a case report and literature review
Version: 
0 
Date: 
02 Jan 2022
Reviewer: 
Boubacar Efared
Reviewer's report:
Dear Editor,
Signet ring cell carcinoma is not so unusual in the duodenum, even though rare.
The clinical signs reported here are so common (hemorrhage).
Histological images are of low quality.
The English language quality is not good.
In conclusion, this case report adds nothing to the current scientific knowledge.
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