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Usually, it manifests with the triad of vertical gaze palsy, memory impairment, and coma. In this article, we report three cases of bilateral thalamic strokes whose clinical presentations were dominated by a sudden onset of hypersomnia. We also reviewed last 5 years\u2019 publications related to the AOP strokes in males presenting sleepiness or equivalent terms as a delayed complication. The AOP stroke may present a diagnostic challenge for clinicians which should be considered in the differential diagnosis of hypersomnia.<\/jats:p>","DOI":"10.1177\/1557988320938946","type":"journal-article","created":{"date-parts":[[2020,7,3]],"date-time":"2020-07-03T10:03:15Z","timestamp":1593770595000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":15,"title":["Artery of Percheron Stroke as an Unusual Cause of Hypersomnia: A Case Series and a Short Literature Review"],"prefix":"10.1177","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8698-9339","authenticated-orcid":false,"given":"Imen Ben","family":"Saida","sequence":"first","affiliation":[{"name":"Medical Intensive Care Unit, Farhat Hached University Hospital, Sousse, Tunisia"},{"name":"Research Laboratory N\u00b0 LR12SP09, Heart Failure, Faculty of Medicine of Sousse, University of Sousse, Sousse, 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