This decrease in p[O.sub.2] is the result of a reduced maternal blood supply flowing into the intervillous space, leading to the development of diabetic endarteritis
and resulting in damage to the endothelial cells followed by their proliferation, which can lead to a narrowing of the maternal blood vessel lumens, reducing the uteroplacental circulation.
 This disease process is commonly caused by a polymicrobial infection that results in an obliterative endarteritis
of small blood vessels causing necrosis of the subcutaneous tissue and its fascial planes.
FG is a polymicrobial infection of the perineum, scrotum and penis that spreads in fascial planes and causes obliterative endarteritis
of subcutaneous arteries, resulting in gangrene of the overlying tissue and skin.
Radiation injury to the rectal wall became apparent like obliterative endarteritis
with secondary tissue ischemic and development of neovascular mucosal lesions.
The eventual result of inflammation is production of granuloma which causes small papillary mucosal elevations, lymphangitis, endarteritis
, and fibrosis.
The pathogenesis of aneurismal complication is attributed to endarteritis
of vasa vasorum which causes necrosis and thereby weakness in the vessel wall, leading to aneurysm formation.
 also reported fungal endarteritis
of the ascending aorta by Bipolaris species following replacement of the aortic valve with a porcine valve which ultimately resulted in the patient's death.
The spectrum of neuropathological changes ranges from meningitis to meningoencephalitis and meningomyelitis with extensive parenchymal destruction, often as vasculitis and sometimes as a result of an associated endarteritis
A number of studies showed pathological changes of the placenta, such as villous infarcts, hypovascularity, fibrosis, and thickening of the basal membrane, obliterative endarteritis
, cytotrophoblast proliferation, and syncytiotrophoblasts knotting in patients with IUGR.
Photomicrography of the kidney of an animal of group I (sham) in the area not subjected to ischemia, showing the endarteritis
obliterans (EO) associated with interstitial nephritis (IN).
Histopathological findings include a central area of coagulative necrosis, obliterative endarteritis
, plasma cells, and epithelioid histiocytes.