Currently,
the treatment response in primary central nervous system lymphoma (PCNSL) is
monitored by serial contrast-enhanced anatomic MR imaging, which often showing
characteristic radio-morphological features such as lesion location, strong and
homogenous contrast-enhancement, moderate edema and absence of necrosis. The purpose of our study was to
investigate the objective response rate (ORR) and identify MR findings as
predictors to evaluate the therapeutic response in PCNSL. Our result
shows that tumor size, number, location, homogenous enhancement and the planned
therapeutic strategy were independent factors correlated with treatment
response in patients of PCNSL.