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SEER Training Modules

Kiel Classification for Lymphoma

B T
Low grade Low grade
*Lymphocytic
  • chronic lymphocytic and prolymphocytic leukemia
  • hairy-cell leukemia
 Lymphocytic
  • chronic lymphocytic and prolymphocytic leukemia
Small, cerebriform cell
  • mycosis fungoides, Sézary's syndrome
Lymphoplasmacytic/cytoid
(LP immunocytoma)		 Lymphoepithelioid
(Lennert's lymphoma)
Plasmacytic Angioimmunoblastic (AILD, LgX)
*Centroblastic/centrocytic
  • follicular ± diffuse
  • diffuse
 T zone
*Centrocytic Pleomorphism,
small cell (HTLV-1)
High grade High grade
Centroblastic Pleomorphic, medium and large cell
(HTLV-1 ±)
*Immunoblastic Immunoblastic
(HTLV-1 ±)
*Large cell anaplastic (Ki-1+) Large cell anaplastic (Ki-1+)
Burkitt's lymphoma
*Lymphoblastic Lymphoblastic
Rare types Rare types