Lymphomas are broadly classified into Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL). In HL, the presence of Reed-Sternberg cells is a diagnostic marker. In NHL, various subtypes are identified based on cell morphology and immunophenotype. Key histological features include:
Reed-Sternberg cells in Hodgkin lymphoma Variable cell sizes and shapes in non-Hodgkin lymphoma Patterns of growth, such as follicular or diffuse
