Definitions for "Idiopathic"
Pertaining to idiopathy; characterizing a disease arising primarily, and not in consequence of some other disease or injury; -- opposed to symptomatic, sympathetic, and traumatic.
of unknown causation, or peculiar to an individual.
When the cause of a disease or process is not known.
Keywords:  papilledema, vindesine
Papilledema Vindesine
developmental - a condition that persists from childhood, not something that started at some time