No reliable public source has stated what specific type of cancer Leonid Radvinsky had.

Most major reports and the company’s own statement only say that he died at 43 “after a long battle with cancer” and do not name the organ or subtype. Some social posts and forum discussions speculate or mix in details from other people’s medical histories, but these are not backed by credible reporting and should be treated as unverified gossip.

So, based on information currently available, the type of cancer has not been publicly disclosed, and anything more specific would be speculation rather than fact.

Information gathered from public forums or data available on the internet and portrayed here.