The hydronephrosis is shown in this anatomical illustration, focused on three sagittal sections of the kidney. In the image, one normal kidney, one with obstruction, and one with urine accumulation are visible. Moreover, progressive dilation of the collecting system is observed. Furthermore, structural renal changes are illustrated. On the other hand, differences between stages are clearly identified.
In this case, the hydronephrosis is a condition characterized by urine accumulation in the kidney. Additionally, this accumulation results from obstruction in the urinary tract. Consequently, normal urine flow to the bladder is impaired. Likewise, intrarenal pressure increases. For example, kidney function may be compromised.
From a pathophysiological perspective, obstruction leads to urinary stasis. Moreover, dilation of the renal pelvis and calyces occurs. Furthermore, increased pressure affects the renal parenchyma. On the other hand, if persistent, it may cause progressive kidney damage. Consequently, severity depends on duration.
Regarding causes, the hydronephrosis may result from kidney stones. However, tumors or congenital anomalies may also be involved. Additionally, ureteral strictures can contribute. For example, any blockage in the urinary tract may trigger it. Likewise, location influences severity.
Regarding symptoms, the hydronephrosis may be asymptomatic in early stages. However, advanced cases may cause flank pain. Additionally, urinary infections may occur. For example, general discomfort may be present. Likewise, symptom intensity varies.
On the other hand, the diagnosis of the hydronephrosis is based on imaging studies. Moreover, ultrasound detects renal dilation. Furthermore, CT scans help identify the cause. Overall, these tests confirm the diagnosis. On the other hand, kidney function is evaluated.
Finally, treatment of the hydronephrosis depends on severity and cause. For instance, removing the obstruction may be required. However, severe cases may need surgery. Additionally, follow-up is essential. In conclusion, timely care prevents complications.


