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Journal of Korean Neurosurgical Society 1996;25(4): 740-745.
Prognostic factors of Oligodendroglioma.
Jong Hee Chang, Dong Seok Kim, Joong Uhn Choi, Sang Sup Chung, Kyu Chang Lee
Department of Neurosurgery, Brain Research Institute, College of Medicine, Yonsei University, Seoul, Korea.
ABSTRACT
Oligodendrogliomas are uncommon tumors that develop from oligodendrocytes. They may be pure or associated with astrocyte proliferation. These tumors affect middle-aged adults and are characterized by their slow growth and their fairly suggestive neuroradiological features which are those of a large, calcified, poorly enhanced, peripheral frontal lesion. They are usually benign, but their clinical behavior is variable. In a retrospective study of 56 cases with pure oligodendroglioma. The 5-and 10-year survival rates were 61% and 42, respectively. The influences of the age and sex of the patient, size, location and other radiological findings, the extent of surgical resection, effect of additional radiation therapy and pathlolgical findings of the tumor were invesigated. Among the 14 prognostic factors, the location and pathological findings of the tumor significantly affected the survival rates of the patients. But, the extent of resection and additional radiation therapy were not related to survival.
Key Words: Oligodendroglioma; Survival rates; Prognostic factors; Pathological, finding; Frontal lesion; Radiati on therapy
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