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: 
1 
Date: 
07 Sep 2021
Reviewer's report:
Authors described a gastric mass as a rare manifestation of IgG4-related disease.
Main comments
1) Please check the numeration of figures
2) The term "tumor" in the title may be misleading, since it may suggest cancer. I
feell that "mass" would be more proper.
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
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