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From the Departments of Neurology (Drs. Kang, Lee, Yoon, and Roh) and Radiology (Dr. Han), Seoul National University Hospital, and Department of Neurology, Eulji Medical Center (Dr. Bae), Seoul, Korea.
Address correspondence and reprint requests to Jae-Kyu Roh, MD, PhD, Department of Neurology, Seoul National University Hospital, 28 Yongon-dong, Chongno-gu, Seoul, Korea, 110-744; e-mail: rohjk{at}snu.ac.kr
The authors report 12 patients with acute bilateral cerebellar infarcts in posterior inferior cerebellar artery (PICA) territory. They found three topographic patterns: A) bilateral medial PICA in six patients; B) unilateral whole + contralateral medial PICA in four; and C) bilateral small multiple in two. Nine patients in Groups A and B had unilateral PICA or vertebral artery disease, and both patients in Group C had bilateral vertebral artery disease. These findings support that unilateral supply to both medial PICA territories may be the most relevant pathogenesis of this syndrome.
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