Diagnosis is traditionally based on the clinical findings above in combination with excessive analgesic use. It is estimated that between 2 and 3 kg each of phenacetin or aspirin must be consumed before evidence of analgesic nephropathy becomes clinically apparent.
CT scan without contrast of the abdomen is usually preferred for diagnosing analgesic nephropathy, the findings include: decrease in renal size, bumpy contours and papillary calcifications.
Analgesic nephropathy CT
Analgesic nephropathy x-ray
Renal papillary necrosis MRI
Renal papillary necrosis CT
Renal amyloidosis CT
Diabetic nephropathy CT
Renal amyloidosis MRI
IgA nephropathy physical examination