Gamuts
Filling defect in renal collecting system
Subtypes
Filling defect in calyx
Filling defect in infundibulum
Filling defect in renal pelvis
May Be Caused by
Common
Angiomyolipoma
Blood clot
Hamartoma
Hemangioma
Kidney stone
Lymphoma
Metastasis
Normal renal artery or vein impression
Oncocytoma
Papilloma
Renal cell carcinoma
Renal sinus lipomatosis
Transitional cell carcinoma
Urinary tract gas
Wilms tumor
Uncommon
Aberrant papilla
Amyloidosis
Hydatid cyst
Inflammatory polyp
Leukoplakia
Malacoplakia
Multicystic kidney with pelvoinfundibular atresia
Mycetoma
Parapelvic renal cyst
Parenchymal renal cyst
Polycystic kidney
Pyelitis cystica
Pyelonephritis with debris
Saccular aneurysm
Sloughed papilla
Urinary tract cholesteatoma
Urinoma