T-Cell Prolymphocytic Leukemia (T-PLL) Diagnosis and Treatment

Clinical Features and Epidemiology

T-PLL represents a rare subset of peripheral T-cell lymphomas, which collectively account for approximately 10-15% of non-Hodgkin lymphomas, according to the National Comprehensive Cancer Network 1

Diagnosis of T-PLL requires comprehensive evaluation including flow cytometry to confirm T-cell clonality and characteristic immunophenotype, as recommended by the European Society for Medical Oncology 2
Cytogenetic and molecular studies are necessary to identify characteristic translocations, as suggested by the National Comprehensive Cancer Network and the European Society for Medical Oncology 1, 2
The disease must be distinguished from other mature T-cell neoplasms, including T-cell large granular lymphocytic leukemia and adult T-cell leukemia/lymphoma, according to the European Society for Medical Oncology 2