en psychiatry psychiatry case report case report <div style="text-align: justify;"><span style="font-size:12pt"><span style="line-height:14pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:10.0pt"><span style="color:blue">Background</span></span></i></b><i><span style="font-size:10.0pt"><span style="color:blue">:</span></span></i> <span style="font-size:10.0pt">Kleine-Levin syndrome (KLS) is a rare sleep disorder with at least two episodes of hypersomnia coincidence with at least one cognitive, eating, perceptive and disinhibited symptoms and normal inter-episodes. These symptoms are not explained by another sleep, medical, neurological, psychiatric disorders and substance or drug use. </span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:14pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:10.0pt"><span style="color:blue">Case Presentation:</span></span></i></b><span style="font-size:10.0pt"> Here we report a young female with personality disorder and obsessive-compulsive disorder who had KLS. Her symptoms appeared in the past 1.5 years ago, while she had an episode of hypersomnia lasting for 5 days. She had 4 attacks; each one lasted up to 2-7 days. We found that overriding KLS symptoms on underlying main psychiatric or personality disorders complicates diagnosis. All neurological examinations during episode and further investigation were in normal range. </span></span></span></span><br> <span style="font-size:12pt"><span style="line-height:14pt"><span new="" roman="" style="font-family:" times=""><b><i><span style="font-size:10.0pt"><span style="color:blue">Conclusion:</span></span></i></b><span style="font-size:10.0pt"> We suggest that taking a complete history and mental state examination in the episode and inter episode phase helps to diagnosis both KLS and comorbid psychiatric disorders.</span><b><i><span style="font-size:10.0pt"></span></i></b></span></span></span></div> Kleine levine syndrom, obsessive compulsive disorder, Hypersomnia, case report 150 152 http://caspjim.com/browse.php?a_code=A-10-1473-3&slc_lang=en&sid=1 Pezhman Hadinezhad pezhman.hadinezhad@gmail.com 100319475328460040901 100319475328460040901 No Psychiatry and Behavioral Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran Javad Setareh javad_setareh@yahoo.com 100319475328460040902 100319475328460040902 Yes Department of Psychiatry, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran Parisa Adimi naghan nadimi_paisia@yahoo.com 100319475328460040903 100319475328460040903 No Department of Pulmonary and Sleep Medicine, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran