How do you approach B-cell lymphoblastic lymphoma (without bone marrow involvement) in older adults (>65-70 years)?  

Lymphoblastic lymphoma is more commonly (probably 90-ish%) of T lineage, so this is a relatively rare presentation of an already rare disease. Regardless of age and distribution of disease involvement, B lymphoblastic lymphoma is typically treated with ALL regimens. However, this guidance is less he...