Venous spot sign: Indicator of rapid hematoma expansion in venous thrombosis type of submission: Case reports.

Background: The term "spot sign" was coined by Wada et al in 2007 and thought to be due to ongoing arterial bleeding in primary intraparenchymal haemorrhage (IPH). Spot sign has also been described in the context of intraventricular haemorrhage (IVH). Over the years arterial spot signs have been found to correlate with intraparenchymal hematoma expansion, worse clinical outcomes and increased risk of surgical intervention.