Ureteral dilatation

Introduction It is a symptom of the expansion of the upper ureter due to urinary tract obstruction.

Cause

Urinary tract obstruction caused by ureteral stones and the like.

an examination

Related inspection

Intravenous urography with ureteral ultrasonography

Imaging studies can be diagnosed.

Differential diagnosis

Differential diagnosis of ureteral dilatation:

1. Ureteral tumor: A common benign lesion in ureteral tumor is ureteral polyp, and the malignant lesion is ureteral cancer. Both ureteral tuberculosis and ureteral tuberculosis cause lesions above the ureteral dilatation, hydronephrosis and renal dysfunction. The characteristics of ureteral tumors are that patients often have painless hematuria; excretion and retrograde urography show filling defects in ureteral lesions, ureteral dilatation above the lesion, smooth mucosa, unlike ureteral tuberculosis, extensive lesions, insects Eclipse, beaded change. The ureter can change in S-like form due to stagnant water, but there is no rigid performance; the exfoliated cells in the urine can be positive.

2. Ureteral stenosis: caused by non-specific infection, multiple secondary to pyelonephritis, cystitis excretion and retrograde urography to show localized stenosis of ureteral inflammation, ureteral dilatation above the stenosis, hydronephrosis, should be Identification. However, there is no destructive change in renal pelvis and renal pelvis; urine culture is positive and M. tuberculosis culture is negative. Cystoscopy showed edema and congestion in the bladder mucosa, but no tuberculous nodules, granulation wounds and ulcers. Its clinical manifestations of ureteritis are characterized by paroxysmal cramps due to ureteral peristalsis. The ureteral tuberculosis is characterized by frequent urinary urgency and dysuria as the main clinical manifestations.

3. Periurephritis: The cause of inflammation around the ureter is unknown. The lesion occurs as a retroperitoneal fibrous tissue hyperplasia, and the proliferating tissue surrounds one or both sides of the ureter. Common in the junction of the ureter and renal pelvis and the bifurcation of the iliac vessels. But it can also involve the pelvic ureter or even the kidney due to fibrous tissue surrounding the ureter leading to ureteral stricture, ureteral stiffness, hydronephrosis, both need to be identified. Periurephritis is rare, with less frequent urination, urgency, dysuria, excretory and retrograde urography. The ureter is displaced to the midline, the lumen is thinner, but the ureteral lumen is smooth, without worm-like and beaded changes. There is no destructive lesion in the kidney; cystoscopy has no tuberculous nodule granulation wounds and ulcers in the bladder mucosa; urine examination of pus cells is rare without rice soup-like pyuria.

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