“Mercedes-Benz” Sign in Posttraumatic Falcotentorial Subarachnoid Hemorrhage

Abstract

Two-wheeler riders have a disproportionately higher incidence of traumatic brain injuries (TBI) as compared with other modes of transport. Diagnosis of posttraumatic falcotentorial subarachnoid hemorrhage can be made from CT scan. With such findings on CT scan, the authors are proposing a new sign named as “Mercedes-Benz” sign to identify such type of hemorrhage.

Keywords

head injury - falcotentorial subarachnoid hemorrhage - CT scan

• References

• 1 Richter M, Otte D, Lehmann U , et al. Head injury mechanisms in helmet-protected motorcyclists: prospective multicenter study. J Trauma 2001; 51 (5) 949-958
• 2 Ueyama T, Al-Mefty O, Tamaki N. Bridging veins on the tentorial surface of the cerebellum: a microsurgical anatomic study and operative considerations. Neurosurgery 1998; 43 (5) 1137-1145
• 3 Muthukumar N, Palaniappan P. Tentorial venous sinuses: an anatomic study. Neurosurgery 1998; 42 (2) 363-371
• 4 Lau LS, Pike JW. The computed tomographic findings of peritentorial subdural hemorrhage. Radiology 1983; 146 (3) 699-701