A widespread disease process in which multiple atheromas develop throughout the arterial system.
Combines 'atherom-' with '-osis' (a medical suffix indicating a diseased condition or process). Created in the 19th century as a more comprehensive term for systemic arterial degeneration.
The '-osis' ending in medicine often means 'a bad spreading condition'—so atheromatosis is basically your whole body's arterial system gradually turning into a fatty mess, unlike a single atheroma.
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