Kidney CT Appearances

Staghorn Calculus CT Findings

• Renal calculi that branch into multiple calyces
• Renal pelvis is classically involved
• The branching appears like stag horns, thus the name “staghorn” calculus
• May be associated with XGP

Other Information About Staghorn Calculus

Etiology:

• Frequent UTIs
• Urinary tract malformations
• Catheter use
• Neurogenic bladder

Epidemiology:

• More common in females
• Can occur at any age

Presentation:

• Fever
• Hematuria
• Abdominal pain

Prognosis:

• Mortality rate is about 30% with treatment