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Cerebellar hemorrhages in patients with cerebral amyloid angiopathy.
Journal of the Neurological Sciences 2019 October 16
BACKGROUND: Cerebral amyloid angiopathy (CAA) typically involves the cerebral cortex but whether it affects the cerebellum remains uncertain.
METHODS: Patients with intracerebral hemorrhage (ICH) who underwent magnetic resonance imaging were prospectively enrolled. Patients were diagnosed with CAA according to the Boston criteria and their hemorrhage types were categorized as macro-hematoma (MH) or microbleeds (MB). Patients with CAA and cerebellar involvement were compared with CAA patients without cerebellar involvement.
RESULTS: Out of 614 patients with ICH, 85 (14%) had a post-ICH MRI. Of those, 41 (48%) were diagnosed with possible (n = 19), probable (n = 21) or definite (n = 1) CAA. Cerebellar involvement was seen in 14/41 (34%) patients with CAA. Most cerebellar lesions were of the MB type (35%) and most patients had several cerebellar MB typically involving the cerebellar cortex (85%). Patients with cerebellar involvement had larger numbers of lobar MB but clinical variables including age, gender, risk factor profile, mRS scores at 90 days or survival did not differ between those with and without cerebellar involvement.
CONCLUSIONS: Cerebellar involvement may be common in CAA. Most patients have multiple superficial cerebellar MB. Clinical characteristics do not differ between CAA patients with or without cerebellar involvement. Patients presenting with cerebellar ICH should be screened for CAA with MRI.
METHODS: Patients with intracerebral hemorrhage (ICH) who underwent magnetic resonance imaging were prospectively enrolled. Patients were diagnosed with CAA according to the Boston criteria and their hemorrhage types were categorized as macro-hematoma (MH) or microbleeds (MB). Patients with CAA and cerebellar involvement were compared with CAA patients without cerebellar involvement.
RESULTS: Out of 614 patients with ICH, 85 (14%) had a post-ICH MRI. Of those, 41 (48%) were diagnosed with possible (n = 19), probable (n = 21) or definite (n = 1) CAA. Cerebellar involvement was seen in 14/41 (34%) patients with CAA. Most cerebellar lesions were of the MB type (35%) and most patients had several cerebellar MB typically involving the cerebellar cortex (85%). Patients with cerebellar involvement had larger numbers of lobar MB but clinical variables including age, gender, risk factor profile, mRS scores at 90 days or survival did not differ between those with and without cerebellar involvement.
CONCLUSIONS: Cerebellar involvement may be common in CAA. Most patients have multiple superficial cerebellar MB. Clinical characteristics do not differ between CAA patients with or without cerebellar involvement. Patients presenting with cerebellar ICH should be screened for CAA with MRI.
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