Search This Blog

Chronic Pyelonephritis.

Typical coarse scars of chronic pyelonephritis associated with vesicoureteral reflux. The scars are usually polar and are associated with underlying blunted calyces.

Chronic Obstructive Pyelonephritis

Chronic Reflux-Associated Pyelonephritis (Reflux Nephropathy)

Morphological features

uneven scarring is useful in differentiating chronic pyelonephritis from the more symmetrically contracted kidneys associated with vascular sclerosis (often referred to as "benign nephrosclerosis") and chronic GN

scarring involving the pelvis or calyces, or both, leading to papillary blunting and marked calyceal deformities called caliectasis

Uneven interstitial fibrosis and an inflammatory infiltrate of lymphocytes, plasma cells, and occasionally neutrophils.Dilation or contraction of tubules, with atrophy of the lining epithelium

glassy-appearing PAS-positive casts known as colloid casts: thyroidization

glomerulosclerosis is seen in areas of better preserved renal parenchyma

tubular dysfunction occurs with loss of concentrating ability, manifested by polyuria and nocturia.

Chronic pyelonephritis. The surface (left) is irregularly scarred. The cut section (right) reveals characteristic dilation and blunting of calyces. The ureter is dilated and thickened, a finding that is consistent with chronic vesicoureteral reflux. B, Low-power view showing a corticomedullary renal scar with an underlying dilated deformed calyx. Note the thyroidization of tubules in the cortex


  1. Replenish 360 offers one of the most affordable wellness and preventative services that are personalized and one of the most activating one-of-a-kind IV drip and infusions, vitamin and antioxidant supplementation, micronutrient therapy, and other additional supplementary wellness services to “renew your body, refresh your mind, and restore performance.” Glutathione IV

  2. especially if you're stuck at a weight loss plateau. With a little help from the best weight loss supplement, you'll be able to feel confident with your new and improved body. how to weight loss fast