Journal of the Medical Association of Thailand Vol 92, No 11:NOVEMBER 2009 0125-2208 92 11 2009 Nov Extrapontine Myelinolysis in Preoperative Sellar Region Tumor: Report of Two Cases 1548 EN Duangpol Srimanee Roongroj Bhidayasiri Kammant Phanthumchinda Case Report Extrapontine myelinolysis Sellar region tumor Generalized dystonia Hypopituitarism Adrenalinsufficiency