Dear friend, welcome to HCM.
if the diagnosis on biopsy
was poorly differentieted carcinoma, it means a bad kind of cancer. source ? unknown, were you evaluated fully?
other sites tested ? results of tests?
is due to many chronic conditions , cacer being common cause. hence the rise.
pl. consult a qualified oncologist
, if not already, and act on advice. unless you give me all the test results, it is difficult to comment right now.
but looks like a growing cancer with poor outlook. act fast.
take care and pl. keep me posted on the progress.