Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 6 2 2009 06 15 42 46 M. Gunashekhar Postgraduate Student, Department of Pediatric Dentistry, School of Dentistry, Sri Ramachandra Medica A. Ponnudurai 2Associate Professor, Department of Pediatric Dentistry, School of Dentistry, Sri Ramachandra Medica 2015 10 03 Langerhans cell histiocytosis is a relatively rare unique disease process characterized by an abnormal proliferation of immature dendritic cells usually affecting children and young adults. Jaws are involved in less than 10% of children with the disease while mandibular involvement in young children is uncommon and bilateral affection is very rare. The purpose of this report is to describe a unique and very rare case of simultaneous and bilateral occurrence of Langerhans cell histiocytosis in both the jaws of a four-year-old boy. https://fid.tums.ac.ir/index.php/fid/article/view/185 https://fid.tums.ac.ir/index.php/fid/article/download/185/185