サイトウ　タイイチ   Saitou Taiichi   齋藤　太一    所属   医学研究科 医学研究科 (医学部医学科をご参照ください)    職種   非常勤講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Familial occurrence of dysembryoplastic neuroepithelial tumor-like neoplasm of the septum pellucidum: case report.
掲載誌名	正式名：Neurosurgery 略　 称：Neurosurgery ISSNコード：1524-4040(Electronic)0148-396X(Linking)
掲載区分	国外
巻・号・頁	63(2),pp.E370-2; discussion E372
著者・共著者	Saito Taiichi, Sugiyama Kazuhiko, Yamasaki Fumiyuki, Tominaga Atsushi, Kurisu Kaoru, Takeshima Yukio, Hirose Takanori
発行年月	2008/08
概要	OBJECTIVE:Dysembryoplastic neuroepithelial tumor (DNT)-like neoplasms of the septum pellucidum are extremely rare. In this article, we report the familial occurrence of these neoplasms.CLINICAL PRESENTATION:We report two cases of such neoplasms: Patient 1, a 42-year-old woman, and Patient 2, the 20-year-old nephew of Patient 1. Patient 1 experienced headache and worsening dizziness; Patient 2 experienced headache and worsening dizziness and also had partial seizures. In both cases, magnetic resonanceCLINICAL PRESENTATION:imaging (MRI) revealed an intraventricular tumor adjacent to the septum pellucidum. Both tumors appeared as a hypointense region on T1-weighted MRI, and both appeared as a hyperintense region on T2-weighted MRI without gadolinium enhancement. Interestingly, both tumors had a high apparent diffusion coefficient.INTERVENTION:Both tumors were subtotally removed and had common histological findings, such as alveolar structures with oligodendroglia-like cells andINTERVENTION:"INTERVENTION:specific glioneuronal element.INTERVENTION:"INTERVENTION:These findings are consistent with a dysembryoplastic neuroepithelial tumor-like neoplasm. After tumor removal, the symptoms disappeared. The postoperative course was uneventful, and the patients did not require adjuvant therapy. MRI showed no regrowth of residual tumors at 4 years (Patient 1) and 2 years (Patient 2) postoperatively.CONCLUSION:The familial occurrence of this rare tumor suggests that both of these cases arose from a common germline mutation. Identification of this rare tumor in this rare location is important to avoid unnecessary adjuvant therapy. A markedly high apparent diffusion coefficient and histological findings of specific glioneuronal element can facilitate the differential diagnosis of dysembryoplastic neuroepithelial tumor-like neoplasms. Genetic study of affected patients in this family may provide clues to its molecular pathogenesis.
DOI	10.1227/01.NEU.0000320421.82255.63
文献番号	18797318