Infundibular narrowing

Infundibular stenosis

Common: Acute pyelonephritis; Hemorrhage; Normal variant; Renal cell carcinoma; Renal sinus lipomatosis; Renal sinus mass; Transitional cell carcinoma; Trauma
Uncommon: Acute focal bacterial nephritis; Angiomyolipoma; Brucellosis; Congenital infundibular stenosis; Extrarenal pelvis; Extrinsic compression; Inflammatory stricture; Lymphoma; Parapelvic renal cyst; Partial nephrectomy; Renal abscess; Renal infarct; Squamous cell carcinoma; Tuberculosis

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