Very Small Cerebellar Infarcts: Integration of Recent Insights into a Functional Topographic Classification Cerebrovasc Dis 2013;36:81-87 - DOI:10.1159/000353668.

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Presentation transcript:

Very Small Cerebellar Infarcts: Integration of Recent Insights into a Functional Topographic Classification Cerebrovasc Dis 2013;36:81-87 - DOI:10.1159/000353668 Fig. 1. Selection of three key MR images for the lobar and lobular classification of the cerebellum (according to Schmahmann et al. [6]), at the level of the midbrain (a), pons (b), and medulla oblongata (c). The fissures visualized in yellow are usually the most prominent and have a characteristic configuration. The primary fissure (PF) is the largest fissure in the midline and divides the cerebellum into an anterior and a posterior lobe. The posterior superior fissure (PSF) runs parallel and posterior to the PF in the posterior lobe. The great horizontal fissure (GHF) forms an acute angle with the former fissures. Other fissures are shown in blue. Lobules indicated are lobules I-IX, Crus I (CrI), and Crus II (CrII). See figure 2 for the flocculus (hemispheric part of lobule X). © 2013 S. Karger AG, Basel

Very Small Cerebellar Infarcts: Integration of Recent Insights into a Functional Topographic Classification Cerebrovasc Dis 2013;36:81-87 - DOI:10.1159/000353668 Fig. 2. T2WI (a) and DWI (b) show a very small acute infarct (black arrow) in between the primary fissure (arrow) and the posterior superior fissure (dashed arrow), situating the lesion in the posterior lobe in lobule VI. Also notice the great horizontal fissure (arrowhead). c MR angiogram shows a tight stenosis of the distal left vertebral artery and proximal basilar artery (encircled). © 2013 S. Karger AG, Basel

Very Small Cerebellar Infarcts: Integration of Recent Insights into a Functional Topographic Classification Cerebrovasc Dis 2013;36:81-87 - DOI:10.1159/000353668 Fig. 3. Axial T2WI show multiple chronic infarcts in the left cerebellar hemisphere and one similar infarct on the right (arrows). The lesions are below the level of the primary fissure (not shown) and are therefore situated in the posterior lobe. Also indicated are the nodulus (asterisk) in between the tonsils (T), and the flocculus (F). © 2013 S. Karger AG, Basel