FIGURE 2.

Types of cerebellar hemorrhage in relation to possible timing and outcomes. The picture shows the possible correlation between lower gestational ages of birth and higher incidence of larger hemorrhages, concerning outcomes. Massive hemorrhage usually involves both the hemispheres and the vermis and can be related to supratentorial lesions, i.e., IVH. It has the worst outcome, leading to generalized cerebellar atrophy and to significant neurological sequelae, presenting the highest mortality rate. Medium hemorrhages involve only one-third of the cerebellar hemisphere, hence usually a single lobe (i.e., anterior or posterior lobe). It frequently evolves in focal atrophy and a variable neuropsychiatric outcome, typically milder than the massive one. Punctate hemorrhage is smaller than 4 mm. Generally, it does not lead to cerebellar hypoplasia and presents minimal neurological abnormalities, depending on the lesion site (Volpe, 2009; Zayek et al., 2012; Boswinkel et al., 2019; Gano and Barkovich, 2019).