Review for 10.1186/s12876-019-1138-2 (2019)

Reviewer ’s report  
 
Title: Microscopic features of small bowel mucosa of patients with Crohn ’s disease  
 
Version: 0 Date: 07 Aug 2019  
 
Reviewer: Rizwan Ahamed  
 
Reviewer's report:  
 
I commend Yun Cui et al on this well written clinicopathological case series of Crohn's patients. 
I have a few comments and queries regarding the study.  
 
 
1. It was very interesting to read the different types of granulomatous lymphangitis 
discovered in these set of patients. Can you make it clear if the types mentioned are 
actually separate entities or belong to the same spectrum of the disease pathology?  
 
2. I understand this study was mainly intended as a pathological analysis, however some 
more data could have been presented on the clinical status of these patients. For instance, 
the Crohn's Disease Activity Index (CDAI) of these set of patients have not been 
mentioned.  
 
3. Did all the patients undergo double balloon enteroscopy irrespective of their clinical 
presentation?  
 
4. What was the indication for enteroscopy in the patients? How was small bowel Crohn's 
diagnosed?  
 
5. How was the protocol of taking biopsies  decided? Were they random biopsies or based 
on mucosal changes noted on endoscopy?  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.  
 
I am able to assess the statistics  
 
Quality 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 received reimbursements, f ees, funding, or salary from an 
organisati on 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 t hat may in any way gain or lose 
financially from the publication of this manuscrip t, 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 co mpeting interests' 
below. If your reply is yes to any, please give details below.  
 
I declare that I have no competing interests  
 
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