BRIEF-JP Morgan's Dimon says medical tests show "no evidence of cancer"

Dec 5 (Reuters) - Dec 5 (Reuters) - JPMorgan Chase & Co : * JPM's Dimon - "having concluded my full treatment regimen a few months ago, I wanted to give you an update on my health" - internal memo * JPM's Dimon says "I had the thorough round of tests and scans that are normally done three months following treatment" for cancer - internal memo * JPM's Dimon says "good news is that the results came back completely clear, showing no evidence of cancer in my body" - internal memo * Further comp