A message from the young man:

"Greetings, dear friends,
My name is Denis Petis.
I am 40 years old, a father of three children.
I am reaching out to you for help.
Unfortunately, I have received a terrifying diagnosis:Chondrosarcoma + non-endocrine tumor.
Now I am undergoing treatment abroad. I am turning to you for assistance because the treatment for my condition is very expensive  and we cannot cover this amount ourselves.
People of goodwill please help me overcome this dreadful diagnosis. Your support is indispensable in my battle against this terrifying illness."