Presentation
Headache, confusion and vomiting for 5 days. Right arm weakness. Medical history: diabetes mellitus and hypertension.
Patient Data
Age: 60 years
Gender: Male
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/89788/annotated_viewer_json?iframe=true\u0026lang=us"}
High T2 and flair signal with evident diffusion restriction at:
- the lower part of right cerebellum, extending paramedian superiorly
- right cerebellar tonsil
- the posterior right aspect of lower part of medulla oblongata
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/89843/annotated_viewer_json?iframe=true\u0026lang=us"}
Marked attenuation of the right posterior inferior cerebellar artery (PICA).
Stenosis of the distal right vertebral artery.
Narrowing of the intracranial segment of the left internal carotid artery (ICA) with multiple plaques.
Case Discussion
Features of acute ischemic stroke affecting posterior circulation. The affected parts correspond to right posterior inferior cerebellar artery (PICA) territory.