There are no claims as such, as this is a case study. It is important to publish this case study, as the tumor is very rare.

NA

A more comprehensive overview of the literature on the topic could be useful.

NA

NA

Methodology is valid

More detail regarding several aspects would be helpful, all of which should already be available in some sort:

1. Images of the immunohistochemical stainings would be important for those readers who would like to appreciate the micromorphological structures themselves.
2. More laboratory parameters, such as testosterone and DHEA as well as other tumor markers (if not done, please say so) would be good to list to allow the reader to get a better overall picture of the patient.
3. A better description regarding the event that lead to death would be helpful  
4. Arrows in the CT images should be provided to guide the reader to the structures of interest.

I am not sure the terminology "oustanding" is applicable here. As I mentioned, the tumor is a rare entity, and the publication of case reports should be encouraged by publishing this case.

This report would benefit from a rigorous review of punctuation and English language. For example, very often sentences do not end with a colon, one sentences does not begin with a capitalized word, the last para of the discussion contains the word "good" twice. Also, "positif anticorps" is not proper English.

In the title, I would suggest to either capitalize both Sertoli and Leydig or not, but not one word capitalized and the other not.

Over 10 years of working in oncology in various functions (clinician, basic researcher and pharmaceutical physician responsible for oncology trial design and medical monitoring). \\nMD/PhD thesis on signal transduction in Leydig cells.