CT scan provides anatomic details and helps in distinguishing intrarenal and extrarenal pathologies but it is difficult to distinguish hydronephrosis from pyonephrosis on a CT scan. The indirect signs of pyonephrosis on CT scan include enlarged kidneys, presence of an infected collecting system in the setting of hydronephrosis, perinephric fat stranding, pelvic wall thickening, fluid-fluid levels, and gas within the collecting system.
Pyonephrosis CT
Pyonephrosis MRI
Pyonephrosis ultrasound
Hydronephrosis MRI
Hydronephrosis electrocardiogram
Pyelonephritis MRI
Hydronephrosis CT
Pyonephrosis physical examination