Comparison of selected subtypes in three classifications (modified from Harris et al6)
| REAL classification6 | Working formulation3 | Updated Kiel classification2 | ||
|---|---|---|---|---|
| Extranodal marginal zone B cell lymphoma (low grade B cell lymphoma of MALT type) | Small lymphocytic | No equivalent | ||
| Diffuse, small cleaved cell | ||||
| Diffuse, mixed small and large cell | ||||
| Lymphoplasmacytoid lymphoma | Small lymphocytic plasmacytoid | Lymphoplasmacytic immunocytoma | ||
| Diffuse, mixed small and large cell | ||||
| Follicular centre lymphoma, diffuse, small cell | Diffuse, small cleaved cell | Centroblastic-centrocytic, diffuse | ||
| Follicular centre lymphoma, follicular | Follicular, predominantly small, large, or mixed cells | Centroblastic-centrocytic, follicular | ||
| Follicular, mixed small and large cells | ||||
| Follicular, predominantly large cell | ||||
| Diffuse large B cell lymphoma | Diffuse, large cell | Centroblastic or B immunoblastic | ||
| Large cell immunoblastic | ||||
| Diffuse, mixed small and large cell | ||||
| Mantle cell lymphoma | Diffuse, small cleaved cell | Centrocytic | ||
| Small lymphocytic | Centroblastic, centrocytoid subtype | |||
| Follicular, small cleaved cell, | ||||
| Diffuse, mixed small and large cell | ||||
| Diffuse, large cleaved cell | ||||
| Peripheral T cell lymphomas, unspecified | Diffuse, mixed small and large cell | Pleomorphic, medium sized and large T cell | ||
↵When REAL category is equivalent to more than one working formulation or updated Kiel category, italicised category comprises the majority of cases.