B-Cell vs. T-Cell Lymphoma: Aggressiveness and Prevalence

B-cell lymphomas are generally more aggressive than T-cell lymphomas:

• More often high-grade, fast-growing, and prone to spread.
• Account for ~85% of non-Hodgkin lymphomas.

T-cell lymphomas tend to be low-grade and slower-growing. However, individual behavior varies; prognosis depends on subtype, stage, and patient factors.