All of the below statements are true about papilledema, EXCEPT:
Extracellular edema
Disruption of neurofilament
Stasis of axoplasmic flow
Axonal swelling
In papilledema, the alteration in the pressure gradient across the lamina cribrosa causes stasis of axoplasmic flow which in turn causes venous congestion, axonal swelling, and extracellular edema. Ref: Parson's Diseases of the Eye, 20th Edition, Page 330; Ophthalmology: A Pocket Textbook Atlas By Gerhard K. Lang, 2007, Page 382.