1Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea. 2Department of Radiation-Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
ABSTRACT
PURPOSE: Primary central nervous system lymphoma (PCNSL) is defined as lymphoma limited to the cranial-spinal axis without evidence of systemic disease and its incidence has risen threefold during the last fifteen years among apparantly healthy population. This study was intended to analyze the clinicopathologic features and treatment outcome of the patient with PCNSL.
MATERIALS AND METHODS: Twenty one patients were diagnosed and treated for the PCNSL limited to brain parenchyme at Asan Medical Center between March 1989 and December 1996. We reviewed clinical records of these patients and analyzed clinicopathologic features, treatment response, survival time and prognostic factors.
RESULTS: The ratio of male to female was 1.3: 1 and the most prevalent age group was the 4th decade. Most patients had diffuse large cell (19/21) and B-cell type (8/8). Seventeen (94.4%) among 18 evaluable patients achieved complete remission (CR) as initial response, but 53% of patients showed recurence of the disease. Median times of disease-free and overall survival were 40 and 50 months, respectively and 5 year overall survival rate was 35.3 %.
Prognostic factors such as age and performance status, had a statistically significant influence on the overall survival but not on disease-free survival.
CONCLUSION: CR rate of the patients with PCNSL was high, but relapses were frequent. There fore further studies are needed to define the pmgnostic factors and to decrease relapse rate.
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