Sistema Gastrointestinal e Digestivo

Abstrato

The Mercedes-Benz Sign of Ischemic Colitis

Akira Hokama, Akane Fujita, Tetsuya Ohira, Masatoshi Kaida, Tetsu Kinjo, Jiro Fujita

Ischemic colitis (IC) appears differently in computed tomography scans relative to the slice axis, including target sign on cross section, and the accordion sign in longitudinal image. The Mercedes-Benz sign is originally a triradiate radiolucent shadow, representing gas accumulation within a gallstone. The Mercedes-Benz sign of IC, which we call, is presented by hyperemic mucosa and the triradiate form is produced presumably by tenia coli. We present a case of IC, presenting this interesting radiological finding. Although nonspecific, this sign may allow us to predict the presence of IC.