I hadnât initially include sources, as it seemed to be a syntactic issue rather than content-driven one, but happy to include them. 
- FA 2024 (page 315) lists, albeit in a sentence fragment (which isnât entirely helpful, in this case): âEndocardial fibroelastosis (thick fibroelastic tissue in endocardium of young children)â.
- Amboss (URL below): âEndocardial fibroelastosis is a diffuse thickening of the left ventricle endocardium due to the proliferation of fibrous and elastic tissue.â
Amboss URL: https://next.amboss.com/us/article/MI0MWh?q=fibroelastosis#Z7b6a734d836e4b5dd8dad85c1e104432
The differentiation being that the condition is defined by the proliferation and presence of the fibrous tissue, but the term âendocardial fibroelastosisâ should refer to the condition rather than the tissue itself.
I imagine the cardâs phrasing may have originally stemmed from the fragmented parenthetical phrasing in FA, but results in a sentence structure that seems to have potential to be ambiguous or misleading.
Thank you for your cooperation and citations haha. Sorry to burden you. I think I was going quickly and didnât fully comprehend your original request.
All good. Iâm no stranger to being busy, or weary-eyed. All too familiar, for better or worse.
