@article{oai:dmu.repo.nii.ac.jp:00005188,
 author = {熊澤, 真理子 and 桑島, 成子 and 今高, 城治 and 荻野, 雅宏 and 楫, 靖 and Kumazawa, Mariko and Kuwashima, Shigeko and Imataka, George and Ogino, Masahiro and Kaji, Yasushi},
 issue = {1},
 journal = {Dokkyo Journal of Medical Sciences},
 month = {Jul},
 note = {視床下部過誤腫は抗てんかん薬治療の反応性が乏しい難治性てんかんとして知られており，外科的加療を検討する上でこれを早期に診断する意義は高い．症例は3歳男児．6か月間の抗てんかん薬治療への反応性が乏しかったため，笑い発作の原因精査としてMRIを撮像した．左視床下部・乳頭体が腫瘤状に腫脹しT1及びT2強調像で大脳皮質と等信号を呈しており，視床下部過誤腫と診断した．視床下部過誤腫は発生部位により症状が異なると言われている．本症例の腫瘍は1cm 程度であり，発生部位を意識して撮像し，読影することで早期診断，治療が可能である．, Hypothalamic hamartoma（HH）is known to present with intractable epilepsy or central precocious puberty, which emphasizes the significance of proper diagnosis. Herein, we describe a case of HH associated with gelastic seizures.
　The patient was a 3-year-old boy who presented with gelastic seizures that poorly responded to antiepileptic drugs for more than 6 months. Magnetic resonance（MR） imaging revealed a hypothalamic mass within the floor of his third ventricle. The lesion appeared isointense to gray matter on both the T1- and T2-weighted images, concordant with the diagnosis of HH.
　Intrahypothalamic HH often presents with typical gelastic seizures. It is visualized in the coronal plane, whereas parahypothamlamic type is more visible on the sagittal imaging, which leads to precocious puberty. This case demonstrates that obtaining the precise clinical information of the patient before imaging and using the suitable MR plane are key to choosing the appropriate diagnosis and treatment of intrahypothalamic HH.},
 pages = {29--32},
 title = {intrahypothalamic type の視床下部過誤腫の一例},
 volume = {49},
 year = {2022}
}