Review for 10.1186/s12876-020-01436-3 (2020)

Reviewer’ s report
Title: Intraductal papillary mucinous neoplasm complicated with intraductal bleeding in a young
woman mimicked a cystic solid pseudo-papillary tumor: a case report.
Version: 0Date: 06 Dec 2019
Reviewer: Atsuhiro Masuda
Reviewer's report:
This paper reported the case of "Intraductal papillary mucinous neoplasm (IPMN) complicated
with intraductal bleeding in a young woman mimicked a cystic solid pseudo-papillary tumor: acase report. ".This case is rare IPMN case with intracystic bleeding.In my opinion, a major revision of manuscript is needed before it can be accepted for publication.
Major:
1.First of all, it was difficult to understand the whole image of this case. Please provide themacroscopic image and the roupe image.2.In Figure 11, only very small size cyst was seen. Was there the papillary epithelium lining thecyst wall?3.In MRCP image, I could not find the main pancreatic duct (MPD) and it seems difficult toevaluate the communication between cyst and MPD. Please provide more clear images andindicate the cyst and MPD by "the arrow" or " the arrow head".4.US or EUS image may be interesting. Please provide them.5.It might be better to use "solid pseudopapillary neoplasm" rather than "solid pseudopapillary
tumor".
Are the methods appropriate and well described?
If not, please specify what is required in your comments to the authors.
YesDoes the work include the necessary controls?
If not, please specify which controls are required in your comments to the authors.
YesAre the conclusions drawn adequately supported by the data shown?
If not, please explain in your comments to the authors.
Yes
Are you able to assess any statistics in the manuscript or would you recommend an
additional statistical review?If an additional statistical review is recommended, please specify what aspects require furtherassessment in your comments to the editors.
Not relevant to this manuscriptQuality of written English
Please indicate the quality of language in the manuscript:
Acceptable
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