title: Gelastic seizures in a young boy: evaluation by magnetic resonance imaging.
abstract: OBJECTIVE
  To present an interesting case of gelastic seizures in a child who had an underlying brain lesion.
  
  
  METHODS
  A 10-year-old boy presented with recurrent episodes of uncontrollable laughter since the age of 6 years. Computed tomography showed a well-defined mass in the region of suprasellar and interpeduncular cisterns. Magnetic resonance imaging revealed a lesion, most likely a hamartoma, arising from the region of tuber cinerium. The lesion was subsequently resected and a marked improvement in the frequency and intensity of seizures was noted.
  
  
  CONCLUSIONS
  This report shows that neuroimaging should be performed on patients with gelastic seizures to exclude any underlying structural lesion of causal significance.
authors.affiliation: Department of Radiodiagnosis and Imaging, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India. irfanrobbani@yahoo.co.in
authors.forename: Irfan
authors.initials: I
authors.lastname: Robbani
authors.forename: Tariq Ahmed
authors.initials: TA
authors.lastname: Bhat
mesh_terms: D002648:Child; D004828:Epilepsies, Partial / Q000175:diagnosis*; D006222:Hamartoma / Q000175:diagnosis*; D006801:Humans; D007046:Hysteria; D007845:Laughter; D008279:Magnetic Resonance Imaging; D008297:Male; D014055:Tomography, Emission-Computed