Table 1. List of Lymphoid Neoplasms Recognized by the 
                         International Lymphoma Study Group 

    B-Cell Neoplasms 

 I. Precursor B-cell neoplasm: Precursor B lymphoblastic leukemia/ 
         Iymphoma 
II. Peripheral B-cell neoplasms 
       1. B-cell chronic Iymphocytic leukemia/prolymphocytic/ 
                leukemia/small Iymphocytic Iymphoma 
       2. Lymphoplasmacytoid Iymphoma/ immunocytoma 
       3. Mantle cell lymphoma 
       4. Follicle center lymphoma, follicular 
            Provisional cytologic grades: I (small cell), II (mixed small 
                and large cell),  III (large cell) 
             Provisional subtype: diffuse, predominantly small cell type 
       5. Marginal zone B-cell Iymphoma 
             Extranodal (MALT-type +/- monocytoid B cells) 
             Provisional subtype: Nodal (+/- monocytoid B cells) 
       6. Provisional entity: Splenic marginal zone Iymphoma (+/-
                villous Iymphocytes) 
       7. Hairy cell leukemia 
       8. Plasmacytoma/plasma cell myeloma 
       9. Diffuse Large B-cell Iymphoma* 
             Subtype: Primary mediastinal (thymic) B-cell Iymphoma 
      10. Burkitt's Iymphoma 
      11. Provisional entity: High-grade B-cell Iymphoma. Burkitt-like*
 
    T-Cell and Putative NK-Cell Neoplasms
 
   I. Precursor T-cell neoplasm: Precursor T-lymphoblastic 
          Iymphoma/leukemia 
  II. Peripheral T-cell and NK-cell neoplasms 
         1. T-cell chronic Iymphocytic leukemia/prolymphocytic 
                 leukemia 
         2. Large granular Iymphocyte leukemia (LGL) 
              T-cell type 
              NK cell type 
         3. Mycosis fungoides/Sezary syndrome 
         4. Peripheral T-cell Iymphomas, unspecified* 
              Provisional cytologic categories: medium-sized cell, mixed 
                  medium and large cell, large cell, Iymphoepithelioid cell 
              Provisional subtype: Hepatosplenic g/d T-cell Iymphoma 
              Provisional subtype: Subcutaneous panniculitic T-cell 
                  Iymphoma 
         5. Angioimmunoblastic T-cell Iymphoma (AILD) 
         6. Angiocentric Iymphoma 
         7. Intestinal T-cell Iymphoma (+/- enteropathy associated) 
         8. Adult T-cell Iymphoma/leukemia (ATL/L) 
         9. Anaplastic large cell Iymphoma (ALCL). CD30+, T- and null
                  cell types 
        10. Provisional entity: Anaplastic large-cell lymphoma. 
                  Hodgkin's-like
 
     Hodgkin's Disease
 
    I. Lymphocyte predominance 
   II. Nodular sclerosis 
  III. Mixed cellularity 
   IV. Lymphocyte depletion 
    V. Provisional entity: Lymphocyte-rich classical HD 
          
*These categories are thought likely to include more than one disease entity. visional