Gliosarcoma is a rare primary malignant tumor of the central nervous system with poor prognosis. The median survival time of this disease ranges from 6 months to 14.8 months. However, a computer literature search indicated few long-term survivors. We investigated a case of a survivor of gliosarcoma with radiation-induced meningeal sarcomas, who showed no indication of recurrence for more than 9 years. A battery of molecular studies was performed to develop a molecular profile of this unique patient. We also reviewed the distinct clinical and molecular features of the tumor.
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http://dx.doi.org/10.4103/0973-1482.137995 | DOI Listing |
Neurosurg Rev
November 2024
Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
Med J Armed Forces India
November 2021
Professor & Head (Histopathology), PGIMER, Chandigarh, India.
Radiation-induced sarcoma (RIS) of the central nervous system is an uncommon late complication of radiation therapy. We report a case of a 47-year-old male patient who underwent surgery followed by irradiation and chemotherapy with temozolomide for a frontal lobe gliosarcoma and presented 43 months later with a recurrent tumor in the same location with interval growth in the size of the lesion. Histology from surgical resection of the recurrent tumor revealed embryonal rhabdomyosarcoma (RMS).
View Article and Find Full Text PDFMagn Reson Imaging
December 2022
Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States; Department of Physics and Astronomy, Vanderbilt University, Nashville, TN, United States. Electronic address:
Background: It remains a clinical challenge to differentiate brain tumors from radiation-induced necrosis in the brain. Despite significant improvements, no single MRI method has been validated adequately in the clinical setting.
Methods: Multi-parametric MRI (mpMRI) was performed to differentiate 9L gliosarcoma from radiation necrosis in animal models.
Int J Radiat Biol
November 2017
a Department of Nuclear Engineering, Radiation Bioengineering Laboratory , Seoul National University, Seoul , Republic of Korea.
Purpose: In the last decade, new types of 'bystander effect' have been suggested by multiple research groups and have been challenged by others. In this study, we explored a new type of bystander effect, which has been defined in previous studies as the enhancement of the survival of high-dose targeted cells due to the penumbra-dose exposed neighbor cells. Intensity-modulated radiation therapy, which is the most widely used treatment modality, generates local regions of gradient doses between targeted and shielded cells throughout the treatment volume; therefore, we were urged to ascertain whether the new type of effect is real and to suggest a revised treatment planning.
View Article and Find Full Text PDFInt J Radiat Biol
September 2016
a Radiation Bioengineering Laboratory, Department of Nuclear Engineering , Seoul National University, Seoul , Republic of Korea.
Purpose: The influence of short-term exposure to an acidic environment on the radiosensitivity of tumor cells has been extensively explored, but the implication of chronic exposure to an acidic environment for the response of tumor cells to radiation has not been fully elucidated. This study aimed to investigate the effects of chronic pre- and post-irradiation exposure of tumor cells to an acidic environment on the radiation-induced clonogenic death.
Materials And Methods: Rat gliosarcoma cells were used throughout the in vitro study.
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