Background: Patients with T-cell acute lymphoblastic leukemia and lymphoma (T-ALL/LLy) commonly present with critical features such as hyperleukocytosis and mediastinal mass, which complicates completing a diagnostic and staging workup and prevents clinical trial enrollment.
Procedure: Consecutive patients with T-ALL/LLy from 1999 to 2019 at the Children's Hospital of Philadelphia were analyzed for pediatric intensive care unit (PICU) admission and various high-risk features as well as clinical trial enrollment and outcome.
Results: We identified 153 patients newly diagnosed with T-ALL/LLy, 53 (35%) required PICU-level care within 24 hours and 73 (48%) within 7 days.