Undetectable renal stone on computed tomography

Abstract

Noncontrast computed tomography(CT) is commonly recommended for the diagnosis of suspected renal stones. In this paper, we present a case of a renal stone that cannot be detected by CT. The stone was made of n-butyl α-cyanoacrylate, a kind of surgical adhesives commonly used in partial nephrotomy.

Keywords

• N-butyl α-cyanoacrylate
• Surgical adhesive
• CT
• Nephrolithiasis