Reviewer ’s report  
 
Title: Do endometrial lesions require removal? A retrospective s tudy 
 
Version: 1 Date: 15 Jan 2019  
 
Reviewer: Assaad  Kesrouani  
 
Reviewer's report:  
 
This a nice study about the role of ultrasound in the detection of endometrial lesions. The study 
by itself is interesting; yet there is some concerns:  
- In the methods, authors shoul d get more in details about the diagnosis by ultrasound, from 
which the population studied was selected: Where they are followed adequately before that ? 
regular ultrasounds or was it the first one to be done? any history of polyp removal or 
curettage for non-specific bleeding?  
 
- Asymptomatic is a word that can hide many features;what were the reason for consultation? 
was is regular check up , or was it for other symptoms? This needs to be clarified.  
 
- Statistical study is interesting, but there is a control group lacking to be able to  attain solid 
conclusions  
 
- Conclusion of the authors would be better limited to the Chinese population. Obesity, 
Hypertension and soja rich food ( among other factors) c ould have an influence on 
endometrial pathology.  
 
- Is it ethical to withheld pathology proof for premenopausal patients based on the results of 
this study , in which no endometrial carcinoma was found. If a patient has an expectative 
management or is lost to follow -up for some reason, wouldn't that worsen her prognosis/ This 
point is relevant and is not discussed by authors  
Are the methods appropriate and well described?  
If not, pleas e 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.  
 
No 
 
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 asp ects 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  
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below.  If your reply is yes to any, please give details be low. 
 
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