The zebra sign has been termed to describe the finding of layering of blood in amongst the folia of the cerebellum, particularly in the setting of remote cerebellar haemorrhage.1
This type of haemorrhage is characterised by a streaky pattern, like a zebra's stripes, due to blood spreading in the cerebellar sulci.
The term zebra has also been used elsewhere in radiology, in the zebra stripe sign (bones).
- 1. Brockmann MA, Nowak G, Reusche E, Russlies M, Petersen D. Zebra sign: cerebellar bleeding pattern characteristic of cerebrospinal fluid loss. Case report. Journal of neurosurgery. 102 (6): 1159-62. doi:10.3171/jns.2005.102.6.1159 - Pubmed