Lactating females may not participate unless they have agreed not to breastfeed a child while on this studyXx_NEWLINE_xXFor B-LLy patients the following additional exclusion criteria apply:* T-lymphoblastic lymphoma* Morphologically unclassifiable lymphoma* Absence of both B-cell and T-cell phenotype markers in a case submitted as lymphoblastic lymphoma* CNS3-positive disease or testicular involvement* M2 (5% - 25% blasts) or M3 (> 25% blasts) marrow* Female patients who are pregnant are ineligible* Lactating females are not eligible unless they have agreed not to breastfeed their infants* Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained* Sexually active patients of reproductive potential are not eligible unless they have agreed to use an effective contraceptive method for the duration of their study participationXx_NEWLINE_xXLactating females are not eligible unless they have agreed not to breastfeed their infantsXx_NEWLINE_xXLactating females are not eligible unless they have agreed not to breastfeed their infantsXx_NEWLINE_xXPregnancy and breast feeding:* Female patients who are pregnant are ineligible* Lactating females are not eligible unless they have agreed not to breastfeed their infants during treatment and for a period of 1 month following completion of treatment* Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtainedXx_NEWLINE_xXFemale patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained; lactating females are not eligible unless they have agreed not to breastfeed their infants for the duration of protocol therapy; sexually active patients of reproductive potential are not eligible unless they have agreed to use an effective contraceptive method for the duration of protocol therapyXx_NEWLINE_xXLactating females are not eligible unless they have agreed not to breastfeed their infantsXx_NEWLINE_xXLactating females are not eligible unless they have agreed not to breastfeed their infantsXx_NEWLINE_xXLactating females are not eligible unless they have agreed to not breastfeed their infantsXx_NEWLINE_xXLactating females are not eligible unless they have agreed not to breastfeed their infantsXx_NEWLINE_xX