Any structural anomaly of the glomerular arterioles. The interlobar arteries of the kidney branch into arcuate arteries, cortical radiate arteries, and then into afferent arterioles. After passing through the renal corpuscle, the capillaries form the efferent arteriole. The afferent and efferent arterioles are difficult to distinguish histologically and are thus both included in this term and its descendents. [from
HPO]