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Pathology - Obstruction of the urinary tract
Definition: Urinary tract obstruction (obstructive uropathy) refers to a stoppage in the flow of urine at any location inside the urinary system.
Epidemiology • Predominantly observed in older males (attributable to benign prostatic hypertrophy) and pediatric patients (resulting from congenital urinary system defects).
Aetiology • Urolithiasis. • Urothelial neoplasms. • External compression due to abdominal or pelvic masses. • Benign prostatic hyperplasia. • Anomalies of the urinary tract. • Constrictions.
Presentation • Symptoms indicative of blockage (e.g. ureteric colic). • Diminished renal function. • Recurrent urinary tract infections. The specific clinical presentation will depend on the nature of the obstruction—whether it is acute or chronic, affects the upper or lower urinary tract, and whether it is unilateral or bilateral.
Macroscopy • Dilation of the urinary tract occurs above the obstruction, resulting in hydroureter and hydronephrosis. Renal injury is linked to the degradation of renal tissue and the formation of scars.
Complications Obstruction elevates the likelihood of infection, calculi development, and renal impairment (obstructive nephropathy).
Definition: Urinary tract obstruction (obstructive uropathy) refers to a stoppage in the flow of urine at any location inside the urinary system.
Epidemiology • Predominantly observed in older males (attributable to benign prostatic hypertrophy) and pediatric patients (resulting from congenital urinary system defects).
Aetiology • Urolithiasis. • Urothelial neoplasms. • External compression due to abdominal or pelvic masses. • Benign prostatic hyperplasia. • Anomalies of the urinary tract. • Constrictions.
Presentation • Symptoms indicative of blockage (e.g. ureteric colic). • Diminished renal function. • Recurrent urinary tract infections. The specific clinical presentation will depend on the nature of the obstruction—whether it is acute or chronic, affects the upper or lower urinary tract, and whether it is unilateral or bilateral.
Macroscopy • Dilation of the urinary tract occurs above the obstruction, resulting in hydroureter and hydronephrosis. Renal injury is linked to the degradation of renal tissue and the formation of scars.
Complications Obstruction elevates the likelihood of infection, calculi development, and renal impairment (obstructive nephropathy).
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