caa a22 4500 463200608 CHVBK 20180405153111.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10014-007-0215-3 doi (NATIONALLICENCE)springer-10.1007/s10014-007-0215-3 Supratentorial ectopic cortical ependymoma occurring with intratumoral hemorrhage [Elektronische Daten] [Takahito Miyazawa, Takanori Hirose, Kuniaki Nakanishi, Yoichi Uozumi, Nobusuke Tsuzuki, Katsuji Shima] We report here a rare case of supratentorial ectopic cortical ependymoma. This tumor was localized in the left angular gyrus, occurred with intratumoral hemorrhage, was attached to the dura mater, exhibited no continuity with the ventricular system, showed distinctive pathological features (perivascular pseudo-rosette formations and firework-like giant rosette formations), and finally transformed to a glioblastoma-like high-grade lesion. A cortical ependymoma should be considered in the differential diagnosis of supratentorial cortical tumors with intraparenchymal hemorrhage and high vascularity, even if not in contact with the ventricular system. Although malignant transformation is unusual in cortical ependymoma, close observation and adjunctive radiotherapy are strongly recommended after the excision. The Japan Society of Brain Tumor Pathology, 2007 Ectopic ependymoma nationallicence Cortical ependymoma nationallicence Anaplastic ependymoma nationallicence Supratentorial ependymoma nationallicence Hemorrhage nationallicence Miyazawa Takahito Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut Hirose Takanori Department of Pathology, Saitama Medical School, Saitama, Japan aut Nakanishi Kuniaki Department of Pathology, National Defense Medical College, Saitama, Japan aut Uozumi Yoichi Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut Tsuzuki Nobusuke Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut Shima Katsuji Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut Brain Tumor Pathology Springer-Verlag 24/1(2007-05-01), 35-40 1433-7398 24:1<35 2007 24 10014 https://doi.org/10.1007/s10014-007-0215-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10014-007-0215-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Miyazawa Takahito Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut NATIONALLICENCE 700 1- Hirose Takanori Department of Pathology, Saitama Medical School, Saitama, Japan aut NATIONALLICENCE 700 1- Nakanishi Kuniaki Department of Pathology, National Defense Medical College, Saitama, Japan aut NATIONALLICENCE 700 1- Uozumi Yoichi Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut NATIONALLICENCE 700 1- Tsuzuki Nobusuke Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut NATIONALLICENCE 700 1- Shima Katsuji Department of Neurosurgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, 359-8513, Saitama, Japan aut NATIONALLICENCE 773 0- Brain Tumor Pathology Springer-Verlag 24/1(2007-05-01), 35-40 1433-7398 24:1<35 2007 24 10014 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer