Review for 10.1186/s12876-021-02013-y (2021)

Reviewer’s report
Title: 
“Stomach mass” as the first manifestation of IgG4-related disease : A case
report
Version: 
3 
Date: 
24 Oct 2021
Reviewer's report:
BACKGROUND
- there are no references to support the introduction: please, add them.
- the background is still poor. 
- "IgG4-related disease is immune-mediated chronic inflammation that mainly
manifests as organomegaly;…" I do not agree with this sentence…I do not think
that "organomegaly" is the appropriate term. 
- In general, the clinic-pathological aspects of IgG4-RD must be depicted much
better.
- "This article retrospectively analysed a patient…". If it's a case report, it is clear
that it is described "retrospectively". 
- It seems that the English writing really needs of professional and extensive
editing. 
- the last sentence should not be part of the introduction.
CASE DESCRIPTION
- even if the authors have improved it, it is not well written yet. 
- Table 1 is poor and should report all the hematological, biochemical and
immunological parameters
DISCUSSION AND CONCLUSION
- discussions and final take home messages should be separated sections.
- anyway, the take home message is not clear
- the first sentence is grammatically inconsistent. 
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