Review for 10.1186/s12876-020-01211-4 (2020)

Reviewer ’s report  
 
Title: An internal hernia caused by Meckel's diverticulum ：A Case Report  
 
Version: 0 Date: 12 Dec 2019  
 
Reviewer: Ulf Gunnarsson  
 
Reviewer's report:  
This is a generally well written case report of a Meckel's diverticulum causing internal hernia by 
adhesion to the omentum and secondarily forming a narrow ring. The clinical impact of the 
knowledge presented is limited since  most cases with the described presentation are either 
admitted to immediate CT -scan or surgery without imaging. Nevertheless, there is some value in 
adding well written presentations of rare occurrences to the scientific literature.  
 
I have only two smalle r suggestions for the text:  
1. p2r22 - "re" should probably read "are"?  
2. p2r55 - a reference should be given for the frequency 4.1%  
 
Are the methods appropriate and well described?  
If not, please specify what is required in your comments to the authors.  
 
Yes 
 
Does the work include the necessary controls?  
If not, please specify which controls are required in your comments to the authors.  
 
Yes 
 
Are 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 th e manus cript or would you recommend an 
additional statistical review?  
If an additional statistical review is recommended, please speci fy what aspects require further 
assessment in your comments to the editors.  
 
Not relevant to this manuscript  
 
Qual ity of written English  
Please indicate the quality of language in the manuscript:  
 
Acceptable  
 
Declaration of competing interests  
Please complete a declaration of competing interests, considering the following questions:  
 
1. Have you in the past five years re ceived reimbursements, f ees, funding, or salary from an 
organisation that may in any way gain or lose financial ly from the publication of this 
manuscript, either now or in the future?  
 
2. Do you hold any stocks or shares in an organisation that may in any w ay gain or lose 
financially from the publication of this manuscript, either now or in the future?  
 
3. Do you hold or are you currently applying for any patents  relating to the content of the 
manuscript?  
 
4. Have you received reimbursements, fees, funding, or  salary from an organization that 
holds or has applied for patents relating to the content of the manuscript?  
 
5. Do you have any other financial competing interests?  
 
6. Do you have any non -financial competing interests in relation to this paper?  
 
If you can  answer no to all of the above, write 'I declare that I have  no competing inte rests' 
below. If your reply is yes to any, please give details below.  
 
I declare that I have no competing interests  
 
I agree to the open peer review policy of the journal. I understan d that my name will be included 
on my report to the authors and, if the manuscript is accepted f or publication, my named report 
including any attachments I upload will be posted on the websi te along with the authors' 
responses. I agree for my report to be made available under an Open Access Creative Commons  
CC-BY license ( http://creativecommons.org/licenses/by/4.0/ ). I understand that any comments 
which I do not wish to be included in my name d report can be in cluded as confidential comments 
to the editors, which will not be published.  
 
I agree to the open peer review policy of the journal