Presentation
Acute onset of vertigo, nausea and vomiting.
Patient Data
Age: 35 years
Gender: Male
From the case:
Posterior inferior cerebellar artery (PICA) infarct
{"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/108065/annotated_viewer_json?iframe=true\u0026lang=us"}
There is a large left cerebellar infarct involving the posterior inferior cerebellar artery (PICA) territory seen as a large area of low signal on T1, high signal on T2 and FLAIR with restricted diffusion. A mass effect is noted on the 4th ventricle with moderate dilatation of the 3rd and lateral ventricles. On MRA 3D-TOF the right PICA is well-visualized arising from the vertebral artery while the left is not visualized.
Case Discussion
MRI appearances in keeping with an acute PICA territory infarct.