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Urinary tract obstruction 

Urinary tract obstruction

Chapter:
Urinary tract obstruction
Author(s):

Muhammad M. Yaqoob

and Islam Junaid

DOI:
10.1093/med/9780199204854.003.2117

July 30, 2015: This chapter has been re-evaluated and remains up-to-date. No changes have been necessary.

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date: 27 May 2017

Obstructive nephropathy can manifest as either a sudden or an insidious decline in renal function, which can be can halted or even reversed by relief of obstruction. Obstruction can be due to anatomical or functional abnormalities of the urethra, bladder, ureter, or renal pelvis, which may be congenital or acquired, and it can also occur as a consequence of diseases extrinsic to the urinary tract. Although dilatation of the outflow system proximal to the site of obstruction is a characteristic finding, widening of the ureter and/or pelvicalyceal system does not necessarily indicate the presence of obstruction, and flow may be obstructed without such dilatation....

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