Review for 10.1186/s12876-021-02059-y (2021)

Reviewer’s report
Title: 
Laparoscopic S7 hepatectomy for hepatic mucinous neoplasm: A case
report and literature review
Version: 
2 
Date: 
26 May 2021
Reviewer's report:
Only a minor revision would be needed before publication.
1) Paragraph "Case presentation": in the sentence "A round, unenhanced low-
density lesion with a diameter of about 4.6 cm was observed" it would be better
to specify that the lesion was into the liver. 
2) Authors stated that after MRI a large hepatic hydatid cyst was suspected and
surgical resection was indicated. It is not clear why the serological examination
for echinococcosis was not performed. Please add further explanation on this.
3) Was Ca19.9 dosed in the post-operative period? It would be interesting to
know. 
4) Paragraph "Discussion and conclusions": the following sentence "The
prognosis of associated invasive carcinoma derived from MCN can be predicted,
but the current study suggests that it is better than hepatobiliary cell carcinoma"
is not clear. Whereas it is a very rare condition, how the prognosis can be
predicted? Instead of the ""current study", as reported, maybe the authors refers
to the cited paper (ref. n. 1)?
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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
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Yes
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Yes
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Yes
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
Yes