Review for 10.1186/s12876-021-01744-2 (2021)

Reviewer’s report
Title: 
A case of intraductal tubulopapillary neoplasm of the pancreas in a branch
duct: a rare case report and literature review
Version: 
1 
Date: 
26 Feb 2021
Reviewer's report:
The following concerns should be adequately addressed.
1. Intended meaning of "Fine needle biopsy was sent with suspicion of an
intraductal lesion" is obscure. This sentence implied that fine needle biopsy was
done and intraductal lesion was suspected, however, according to the authors'
response to the reviewer's comment, the authors may intend to mean that fine
needle biopsy was not performed because the lesion was intraductal. Please
correct the sentence to clarify the intended meaning. 
2. Intended meaning of "there are limitations in a histology from ITPNs in BD"
is obscure. According to the authors' response, they intended to mean that a
biopsy of ITPN in BD is difficult. Please correct the sentence to clarify the
intended meaning.
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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?
Yes
Are the methods sufficiently described to allow the study to be repeated?
Yes
Is the use of statistics and treatment of uncertainties appropriate?
Yes
Is the presentation of the work clear?
No
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
Yes