Note: Not to be confused with 'Arthritis'
Arteritis refers to a range of conditions which result in persistent inflammation of the inner lining of the arteries. Symptoms include fever, increased red blood cell count, weak pulse etc. It's potentially dangerous as it can lead to thrombosis.
The cause is largely unknown, though many cases are often preceded by infections of some kind. It's thought likely to have an auto-immune component.
Diagnosis is often missed because the symptoms can be very similar to several other diseases such as tuberculosis, syphilis, Kawasaki diseaseplugin-autotooltip__plain plugin-autotooltip_bigKawasaki disease
"Kawasaki disease (KD), also known as Kawasaki syndrome, is a serious illness characterized by inflammation of blood vessels throughout the body that primarily affects young children and infants. Kawasaki disease is the leading cause of acquired heart disease in children. Although about 80 percent of patients are under five years of age, older children and teenagers can also get KD, but this is uncommon. KD is more common in boys than girls, and the majority of cases are diagn…, Behçet's diseaseplugin-autotooltip__plain plugin-autotooltip_bigBehçet's disease
"Behçet’s Syndrome (also known as Behçet’s Disease or, simply, Behçet’s) is a chronic condition resulting from disturbances in the body’s immune system. This system, which normally protects the body against infections by producing controlled inflammation, becomes over-active and results in unpredictable outbreaks of unwanted and exaggerated inflammation. This extra inflammation particularly affects blood vessels of all sizes, including arteries and veins. As a result, symptoms… etc.
There are three main types : Giant cell arteritis, Takayasu arteritis and Temporal arteritis.
For details see : Wikipedia