It becomes of crucial importance when cerebellar infarction is the prelude to cerebellar swelling and brain stem conpression leading to coma and death unless surgically relieved. Recognition of a syndrome corresponding to cerebellar infarction in the PICA territory is important insofar as it assists in the differential diagnosis of dizziness. Although postoperative MRI showed no new cerebral infarct, truncal. In two cases, the clinical diagnosis had been a benign labyrinthine disorder. and that among other vessels, PICA occlusion eliciting ischemic stroke was related to. The right PICA gives branches to supply the PICA territory in the left hemisphere. The clinical manifestations consisted of rotatory dizziness intensified by motion, nausea, vomiting, imbalance, and nystagmus. 1 Lateral medullary syndrome is also called Wallenberg's. Stroke rates in the same territory as the stenotic artery (per 100 patient-years of follow-up) were 10.7 in patients with. In the case of ischemic stroke, however, MRA is prioritized, and due to the inability of MRA to depict most of the normal PICA, PICA-D is likely to be overlooked. Impaired level of consciousness is also common with 26 of patients demonstrating lethargy. The ischemia is a result of a blockage most commonly in the vertebral artery or the posterior inferior cerebellar artery. Stroke rates in any vascular territory (per 100 patient-years of follow-up) were 15.0 in patients with basilar artery stenosis, 13.7 in patients with vertebral artery stenosis, and 6.0 in patients with PCA or PICA stenosis. Delayed or incorrect diagnosis may have devastating consequences, including potentially preventable death or severe disability, if acute treatment or secondary prevention is delayed. The initial symptoms of cerebellar infarction or hemorrhage may be nonspecific such as headache, dizziness, nausea, vomiting, and vertigo >50 of cerebellar strokes present with nausea and vomiting, and 75 of them present with dizziness. We have studied three cases, two clinocaopthologically and one clinicosurgically, in which an acute infarct involving only the cerebellum lay in the PICA territory distal to the branches to the medulla oblongata. Lateral medullary syndrome is a neurological disorder causing a range of symptoms due to ischemia in the lateral part of the medulla oblongata in the brainstem. The present case describes the presentation of an infarction in the PICA cerebellar territory accompanied by infarction in the dorsolateral medulla. Although old or recent infarcts of a cerebellar hemisphere in the territories of the posterior inferior (PICA), superior, or anterior inferior cerebellar arteries are commonplace autopsy findings, in no case have corresponding clinical symptoms been clearly identified. The most common symptoms of posterior circulation stroke are dizziness (47), unilateral limb weakness (41), dysarthria (31), headache (28), and nausea or vomiting (27) 5.
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