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Background: Posterior Inferior cerebellar artery (PICA) is the largest and most distal branch of Vertebral artery (VA) arising near the lower end of olive. Variations of PICA are numerous but have been infrequently reported in this region. Occlusion or blockage of PICA may cause an infarction of the medulla oblongata which plays an important role in circulatory and respiratory functioning. This may lead to lateral medullary syndrome, also called Wallenberg syndrome. The study focuses on normal and variant anatomy of PICA in Uttar Pradesh region of North India.
Sarah et al. (Sat,) studied this question.
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