Adult T-cell leukemia/lymphoma.

Area of Science:

• Oncology
• Virology
• Hematology

Background:

• Adult T-cell leukemia/lymphoma (ATLL) encompasses aggressive neoplasms originating in lymphoid tissues, frequently presenting with leukemia-like blood involvement.
• ATLL is etiologically associated with the human T-cell lymphotropic virus type I (HTLV-I).

Purpose of the Study:

• To summarize the clinical characteristics, diagnosis, and treatment challenges of ATLL.
• To highlight the aggressive nature and poor outcomes associated with ATLL.

Main Methods:

• Diagnosis relies on clinical presentation, malignant cell morphology and immunophenotype, and HTLV-I confirmation.
• Clinical sub-classification includes acute, lymphomatous, chronic, and smoldering forms.

Main Results:

• ATLL is an aggressive malignancy with a median survival under 12 months.
• Patients exhibit refractoriness or transient responses to chemotherapy and purine analogs.
• Opportunistic pulmonary infections and progressive disease, often with hypercalcemia, are primary causes of mortality.

Conclusions:

• Effective treatments for ATLL remain elusive, with limited therapeutic options.
• While chronic and smoldering forms may be indolent, they eventually progress and become refractory to therapy.
• Improved therapeutic strategies are urgently needed for ATLL patients.