Review for 10.1186/s12876-021-01927-x (2021)

Reviewer’s report
Title: 
IgG4- Related Disease as a Rare Cause of Gastric Outlet Obstruction - a
case report and literature review
Version: 
0 
Date: 
08 Jul 2021
Reviewer's report:
The authors presented a case report of a patient with IgG4-related disease (IgG4-
RD) presenting gastric outlet obstruction. The case of IgG4-RD with severe
duodenal stricture and performed surgical treatment is rare. The report seems to
have some impact on clinical practice and is generally well written. 
comments:
1. Please clarify about the differential diagnosis of the gastroduodenal ulcer. Did
patient take some medicine such as NSAIDs? Did author investigate
Helicobacter pylori infection?
2. Please provide some pictures of gastroduodenal endoscopy. Were there any
specific findings in ulcers or duodenal stricture morphologically or in their
distributions?
3. When the patient experienced relapse of symptoms after surgery, did she
undergo endoscopy? If endoscopy or biopsy was performed, please describe the
findings. 
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