Abstract
A retrospective analysis of the clinical presentations and neuroimaging characteristics of 33 patients with a primary central nervous system lymphoma (PCNL) who received cranial radiotherapy was performed to assess incidence of and risk factors for radiation-induced encephalopathy. CT and MRI scans were revised by a neurologist and a radiologist in conference. White matter abnormalities before and after radiotherapy on the last scan before recurrence were quantified according to a semi-quantitative scale. All available medical records were retrieved and reviewed with respect to demographic and tumor-related variables, treatment modalities, disease-free and overall survival and clinical symptoms and signs of encephalopathy. CT and MRI scans showed severe white matter lesions in 75% of 20 patients and in 86% of patients aged more than 60 years. Forty percent of patients presented with new clinical signs of cognitive impairment a median of 14.5 months after initial diagnosis (8.5 months after radiotherapy). The risk of white matter lesions appeared greater in patients aged > 60 (RR 1.2, 95% CI = 0.8–2.0), in patients with prior white matter lesions (RR 1.3, 95% CI = 0.8–2.1) and in patients with multifocal cerebral lymphoma (RR 1.5, 95% CI = 1.0–2.1). In conclusion, the risk of white matter lesions and clinical symptoms and signs of encephalopathy is high in patients treated by radiotherapy for PCNL. The risk appears to be greatest in older patients, patients with multifocal tumor and in those with prior white matter lesions on CT or MRI.
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Eby NL, Grufferman S, Flannelly CM, Schol SC, Vogel FS, Burger PC: Increasing incidence of primary brain lymphoma in the US. Cancer 62: 2461–2465, 1988
Fine HA, Mayer RJ: Primary central nervous system lymphoma. Ann Intern Med 119: 1093–1104, 1993
Hochberg F, Miller D: Primary central nervous system lymphoma. J Neurosurg 68: 835–853, 1988
Murray K, Kun L, Cox J: Primary malignant lymphoma of the central nervous system: results of the treatment of 11 cases and review of the literature. J Neurosurg 65: 600–607, 1986
Rosenthal MA, Green MD: Cerebral lymphoma. In: Kaye AH, Laws Jr ER (eds) Brain Tumors. Churchill Livingstone, Edinburgh, 1995, pp 841–869
DeAngelis LM, Yaholom J, Thaler HT, Kher U: Combined modality therapy for primary CNS lymphoma. J Clin Oncol 10: 635–643, 1992
Ferreri AJM, Reni M, Bolognesi A, Verusio C, Villa E: Combined therapy for primary central nervous system lymphoma in immunocompetent patients. Eur J Cancer 31A: 2008–2012, 1995
Gabbai AA, Hochberg FH, Linggood R: High dose methotrexate therapy of primary brain lymphoma. J Neurosurg 70: 190–194, 1989
Glass J, Shustik C, Hochberg FH, Cher L, Gruber ML: Therapy of primary central nervous system lymphoma with pre-irradiation methotrexate, cyclophosphamide, doxorubicin, vincristine, and dexamethasone (MCHOD). J Neuro-Oncol 30: 257–265, 1996
Sarazin M, Ameri A, Monjour A, Nibio A, Poisson M, Delattre JY: Primary central nervous system lymphoma: treatment with chemotherapy and radiotherapy. Eur J Cancer 31A(12): 2003–2007, 1995
DeAngelis LM: Primary central nervous system lymphoma. J Neurol Neurosurg Psychiatry 66: 699–701, 1999
Jellinger K, Radaskiewicz TH, Slowik F: Primary malignant lymphomas of the central nervous system in man. Acta Neuropathol Suppl 6: 95–102, 1975
Henry JM, Heffner RR, Dillard SH, Earle KM, Davis RL: Primary malignant lymphomas of the central nervous system. Cancer 34: 1293–1302, 1974
Abrey LE, DeAngelis LM, Yahalom J: Long-term survival in primary CNS lymphoma. J Clin Oncol 16(3): 859–863, 1998
Blay J, Conroy T, Chevreau C, Thyss A, Quesnel N, Eghbali H, et al.: High-dose methotrexate for the treatment of primary cerebral lymphomas: analysis of survival and late neurologic toxicity in a retrospective series. J Clin Oncol 16(3): 864–871, 1998
Bleyer WA, Griffin TW: White matter necrosis, mineralizing microangiopathy, and intellectual abilities in survivors of childhood leukemia: associations with central nervous system irradiation and methotrexate therapy. In: Gilbert HA, Kagan AR (eds) Radiation Damage to the Nervous System. Raven Press, New York, 1980, pp 155–174
DeAngelis LM, Delattre JY, Posner JB: Radiation-induced dementia in patients cured of brain metastases. Neurology 39: 789–796, 1989
Mulhern RK, Ochs J, Kun LE: Changes in intellect associated with cranial radiation therapy. In: Gutin PH, Leibel SA, Sheline GE (eds) Radiation Injury to the Nervous System. Raven Press, New York, 1991, pp 325–340
Müller RP: Radiation-induced injury of the central nervous system. In: Dunst J, Sauer R (eds) Late Sequelae in Oncology. Springer-Verlag, New York, 1995, pp 23–27
Van Swieten JC, Hijdra A, Koudstaal PJ, Van Gijn J: Grading white matter lesions onCTand MRI: a simple scale. J Neurol Neurosurg Psychiatry 53: 1080–1083, 1990
Tsuruda JS, Kortman KE, Bradley WG, Wheeler DC, Van Dalsum W, Bradley TP: Radiation effects on cerebral white matter: MR evaluation. Am J Roentgenol 149: 165–171, 1987
Curran WJ, Hecht-Leavitt C, Schut L, Zimmerman RA, Nelson DF: Magnetic resonance imaging of cranial radiation lesions. Int J Radiat Oncol Biol Phys 13: 1093–1098, 1987
Constine LS, Konski MD, Ekholm S, McDonald S, Rubin P: Adverse effects of brain irradiation correlated with MR and_CT imaging. Int J Radiat Oncol Biol Phys 15: 319–330, 1988
Cher L, Glass J, Harsh GR, Hochberg FH: Therapy of primary CNS lymphoma with methotrexate-based chemotherapy and deferred radiotherapy: preliminary results. Neurology 46: 1757–1759, 1996
Freilich RJ, Delattre JY, Monjour A, DeAngelis LM: Chemotherapy without radiation therapy as initial treatment for primary CNS lymphoma in older patients. Neurology 46: 435–439, 1996
Sandor V, Stark-Vancs V, Pearson D, Nussenblat R, Whitcup SM, Brouwers P, et al.: Phase II trial of chemotherapy alone for primaryCNSand intraocular lymphoma. J Clin Oncol 16(9): 3000–3006, 1998
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Wassenberg, M., Bromberg, J., Witkamp, T. et al. White Matter Lesions and Encephalopathy in Patients Treated For Primary Central Nervous System Lymphoma. J Neurooncol 52, 73–80 (2001). https://doi.org/10.1023/A:1010676807228
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DOI: https://doi.org/10.1023/A:1010676807228