arteriolar sclerosis
arteriolosclerosis

It is a type of arteriolosclerosis, which refers to hardening of the arteriolar wall.

There are various types; arteriolosclerosis, medial calcific sclerosis and arteriosclerosis obliterans.

The following terms are similar, yet distinct, in both spelling and meaning, and can be easily confused: arteriosclerosis, arteriolosclerosis, and atherosclerosis.

Hyperplastic arteriolosclerosis is a type of arteriolosclerosis involving a narrowed lumen.

Benign nephrosclerosis is the renal changes occurring in the setting of benign hypertension, which is always associated with hyaline arteriolosclerosis.

The pathology is identical to human hypertensive renal disease and consists of arteriolosclerosis, glomerulosclerosis, and interstitial scarring with tubular cell dropout.

Microscopically, the basic anatomic change consists of hyaline thickening of the walls of the small arteries and arterioles (hyaline arteriolosclerosis).

An increase in the media to lumenal diameter ratio has been observed in hypertensive arterioles (arteriolosclerosis) as the vascular wall thickens and/or lumenal diameter decreases.

Atheroma occurs in atherosclerosis, which is one of the three subtypes of arteriosclerosis (which are atherosclerosis, Monckeberg's arteriosclerosis and arteriolosclerosis).

Types include hyaline arteriolosclerosis and hyperplastic arteriolosclerosis, both associated with vessel wall thickening and luminal narrowing that may cause downstream ischemic injury.

In the kidneys, as a result of benign arterial hypertension, hyaline (pink, amorphous, homogeneous material) accumulates in the wall of small arteries and arterioles, producing the thickening of their walls and the narrowing of the lumina - hyaline arteriolosclerosis.

Tissue hypoxia therefore remains a possible mechanism of increased expression of Fas and FasL, although it seems less likely that the arteriolosclerosis that developed in S kidneys was severe enough to produce hypoxic conditions sufficient to up-regulate Fas, until the third week of study.