So inflammation does not always lead to fibrosis(scarification). If that were the case, inflammation due to exercise or allergies would be more than problematic. And not all people who have myocarditis or pericarditis have scar tissue. Clinicians can detect swelling around the heart, or other abnormal biochemical markers (some of which are markers you would get from exercising particularly hard).

Inflammation is response by the body for some irritant, but it does not have to lead to cell death. I guess you could say that there is a disruption of homeostasis and repair in the localized environment, but most components of cellular division also go into repair of damage from normal cellular responses, so I don’t think it’s a very meaningful distinction.