Nephrocalcinosis

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Nephrocalcinosis, once known as Albright's calcinosis after Fuller Albright, is a term originally used to describe deposition of calcium salts in the renal parenchyma due to hyperparathyroidism. It is now more commonly used to describe diffuse, fine, renal parenchymal calcification on radiology.[1] During its early stages, nephrocalcinosis is visible on x-ray, and appears as a fine granular mottling over the renal outlines. These outlines eventually come together to form a dense mass.[2] It is most commonly seen as an incidental finding with medullary sponge kidney on an abdominal x-ray. However, it may be severe enough to cause (as well as be caused by) renal tubular acidosis or even end stage renal failure, due to disruption of the renal tissue by the deposited calcium.

Contents

[edit] Stages of nephrocalcinosis

  • Chemical nephrocalcinosis
  • Microscopic nephrocalcinosis
  • Macroscopic nephrocalcinosis

[edit] Causes

[edit] Causes of cortical nephrocalcinosis

[edit] Causes of medullary nephrocalcinosis

And other causes of hypercalcemia (and thus hypercalciuria)

[edit] References

  1. ^ Nephrocalcinosis. eMedicine (2003-09-09). Retrieved on 2007-03-10.
  2. ^ Albright's Nephrocalcinosis. e-radiology. Retrieved on 2007-03-10.
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Urinary system - Pathology - Nephrology, including nephritis and nephropathy (N00-N39, 580-599)
Diseases of the glomerulus
Tubulointerstitial diseases of the kidney
Renal failure
Urolithiasis
Diseases of the renal tubule and
other disorders of kidney and ureter
Other diseases and
disorders of urinary system
Tumors of the kidney
See also congenital conditions (Q60-Q64, 753)
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