The central scar: pathophysiology and imaging features.

The central scar is a relatively uncommon radiologic finding. However, when present, it is a highly useful imaging feature which may suggest a specific diagnosis in patients with renal, hepatic, or pancreatic masses of unknown etiology. This pictorial review will serve to illustrate the computed tomography, magnetic resonance, and ultrasonographic imaging features of abdominal neoplasms associated with a central scar.