Gamuts

Clubbing or destruction of renal calyces

May Be Caused by
Abscess
Fungal disease
Hydronephrosis
Neoplasm of kidney
Obstruction of infundibulum
Postoperative scarring
Pyelonephritis
Renal papillary necrosis
Transitional cell carcinoma
Tuberculosis
Vesicopelvic reflux
Xanthogranulomatous pyelonephritis