Review for 10.1186/s12876-021-01666-z (2021)

Reviewer’s report
Title: 
Spontaneous intracapsular hemorrhage of a giant hepatic cavernous
hemangioma: a rare case report and literature review
Version: 
0 
Date: 
07 Jan 2021
Reviewer's report:
GENERAL COMMENT
This report describes the case of a 65-year-old man with abdominal pain owing
to seemingly spontaneous intracapsular bleeding complication of a cystic mass
measuring 12 centimeters occupying the right liver lobe. Histological analysis
disclosed that, conflicting with the clinical-imaging diagnosis of hepatic
adenoma, the mass was due to giant hemangioma. The case reports on a well
known complication of liver hemangioma and seemingly fails to add anything
new to the existing literature, which was incompletely reviewed. 
SPECIFIC COMMENT
MAJOR
1. In most hospitals, this patient would have undergone CT scanning following a
preliminary ultrasonographic evaluation. These authors should comment on the
reason why in this case MR was performed in the absence of CT scanning.
2. Why was intra-operative liver biopsy not performed.
3. These authors claim they performed an accurate review of the literature for
similar cases. However, they do not cite the study by LUCIA CORINA DIMA-
COZMA published in Rom J Morphol Embryol 2018, 59(2):557-561. Compared
to this previous study, BMGE-D-20-01485 adds little if anything. In addition,
these authors were able to retrieve definitely fewerpublished 
cases than
previously reported.
4. The contention "but also has a high mortality rate" is not based on the
outcome of the present and of the most recently published cases (reviewed in
Rom J Morphol Embryol 2018, 59(2):557-561) confirming that these authors did
not access all published cases and, in particular they missed the most recent
ones.
MINOR
English is poor , eg. "didn't lost". Others are unclear: "Cavernous hemangioma is
most common in the liver".
Introduction should start by highlighting the peculiarities of the case rather than
by previously published cases.
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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?
No
Are the methods sufficiently described to allow the study to be repeated?
No
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No
Is the presentation of the work clear?
No
Are the images in this manuscript (including electrophoretic gels and blots) free
from apparent manipulation?
Yes