Final answer:
A) Inflammation of deep blood vessels
The characteristic of deep plexus disease is inflammation of deep blood vessels, which is part of vasculitis, potentially leading to compromised blood flow and necrosis.
Step-by-step explanation:
The characteristic of deep plexus disease is A) Inflammation of deep blood vessels. Vasculitis, the inflammation of blood vessels, can result in the blood leaking from damaged vessels, forming purple spots called petechiae. A related condition, superficial vasculitis, involves inflammation of the more superficial blood vessels. Disorders like varicose veins and edema can also arise from problems within the venous system due to increased pressure which promotes the flow of fluids into the interstitial spaces.
Vasculitis is a serious condition where the body's immune system attacks healthy blood vessels, causing them to become inflamed. This can lead to a range of issues including compromised blood flow and even necrosis of tissues, referred to as ischemia when blood flow is reduced or cut off to certain areas of the body. The characteristic butterfly rash or bull's eye rash is associated with diseases like Lupus and Lyme disease, respectively.