Gunatilake, S.de Silva, D.G.H.2014-10-292014-10-291995Archives of Disease in Childhood. 1995; 72(5): pp.443-440003-9888 (Print)1468-2044 (Electronic)http://repository.kln.ac.lk/handle/123456789/1251Indexed in MEDLINELaughing seizures have been described in association with hypothalamic hamartomas and precocious puberty. Laughing seizures due to a neoplasm arising from the floor of the left lateral ventricle extending down towards the hypothalamus in a child with tuberous sclerosis is reported. This combination has not been reported before and emphasises the importance of imaging to diagnose such midline lesions in children with paroxysmal laughing.Hypothalamic NeoplasmsHypothalamic Neoplasms-complicationsHypothalamic Neoplasms-diagnosisLaughterSeizures-etiologyTuberous Sclerosis-complicationsLaughing seizures due to a midline intraventricular neoplasm in tuberous sclerosisCase ReportMedicine