An Autopsy Case of Oligodendroglioma with Extracranial Metastases - A Statistical Review of Reported Cases -

An autopsy case of oligodendroglioma with extracranial metastases through blood vessels and cerebro-spinal fluid in a 44-year-old female is reported. Post-mortem examination revealed that the tumor involved the left frontal region, optic chiasma, cauda equina, spinal cord, subarachinoid space and bone (sternum, spine, ribs). Microscopic appearances showed the features of rapid anaplastic transformation. Glial fibrillary acidic protein (GFAP)-positive neoplastic oligodendrocytes were found in some areas of the honey-comb structure with prominant vascular stromata in recurrent and metastatic lesions. The histogenesis of this tumor may be interpreted as the constant or temporary production of GFAP by neoplastic oligodendrocytes as a sign of reversion to the fetal oligodendroglia without necessarily implying astrocytic hitogenesis. The present case is the second case of oligodendroglioma with extracranial metastases reported in Japan

Hitomi (ASTRO-H) X-ray Astronomy Satellite

The Hitomi (ASTRO-H) mission is the sixth Japanese x-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. The mission aimed to provide the highest energy resolution ever achieved at E  >  2  keV, using a microcalorimeter instrument, and to cover a wide energy range spanning four decades in energy from soft x-rays to gamma rays. After a successful launch on February 17, 2016, the spacecraft lost its function on March 26, 2016, but the commissioning phase for about a month provided valuable information on the onboard instruments and the spacecraft system, including astrophysical results obtained from first light observations. The paper describes the Hitomi (ASTRO-H) mission, its capabilities, the initial operation, and the instruments/spacecraft performances confirmed during the commissioning operations for about a month

High Cervical Intradural Lipoma : Case Report

A rare high cervical intradural subpial lipoma unassociated with spinal dysraphism manifested by a slowly progressive myelopathy simulating Brown-Sequard syndrome in a 37-year-old male. The diagnosis was based on neuroradiological imaging. Intraoperative recording of somatosensory evoked potentials showed recovery of the prolonged N_ latency, indicating adequate decompression was achieved