Review for 10.1186/s12876-022-02241-w (2022)

Reviewer’s report
Title: 
Computed Tomography Features and Clinicopathological Characteristics
of Gastric Glomus Tumor
Version: 
0 
Date: 
27 Oct 2021
Reviewer's report:
Gastric glomus tumor is rare, and differentiation from GIST affect treatment.
Therefore, these reports are important. However, many things such as CT, EUS,
and histopathological examination have been mentioned, and there are few new
insights. Since malignant gastric glomus tumor is very rare, it would have been
better to focus on comparisons between benign and malignant.
In general, the article appears well organized.
The title is clear and concise, and the abstract is linear. However, in the result
section, almost all message is about diagnostic imaging and does not mention
pathology.
The introduction section appears well described.
The material and methods section is complete. 
The results section appears well reasoned. Nevertheless, some narrative passages
in the text could be clearer:
- The authors wrote "the tumor cells showed positive staining for SMA, IV, and
CD34" in the result section, but also wrote "it is negative for CD34" in the
discussion section. It might be incorrect.
The discussion appears adequate. The authors summarize their results. But many
of them are the same as what has been reported so far and lack novelty. As the
authors said, malignant glomus tumor is extremely rare, so it would have been
better to discuss more this.
Conclusions should be rewritten in a more concise. Furthermore, it would be
better to write conclusions that are more consistent with the title.
The reference list is somewhat inadequate. There are already several reports with
similar content.
#1 Wang J, Liu C, Ao W, An Y, Zhang W, Niu Z, et al. Differentiation of gastric
glomus tumor from small gastric stromal tumor by computed tomography. J Int
Med Res. 2020;48(8):300060520936194.
#2 Baek YH, Choi SR, Lee BE, Kim GH. Gastric glomus tumor: Analysis of
endosonographic characteristics and computed tomographic findings. Digestive
Endoscopy. 2013;25(1):80-3.
The figures and figure legends should be reworked better. It would be better to
provide the explanations of figures of a case 1 and 2 in the text. EUS images are
unclear and not appropriate. The upper gastrointestinal series is also not exact,
and some of the arrows look inappropriate.
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Is the study design appropriate to answer the research question (including the use
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