What is the current role of excretory urography (EU)?
• EU is also known as an intravenous pyelogram
• The EU used to be the initial modality for upper tract imaging in patients with hematuria, flank pain, and other urologic disease
• Now replaced by ultrasound, CT urography, and MR urography in most medical centers
• Less sensitive than US, CT, or MRI for detecting kidney masses
• EU does not allow reliable differentiation of solid masses from cysts
