Working Formulation

The Working formulation is an obsolete classification of non-Hodgkin lymphomas, first proposed in 1982.^[1] It has since been replaced by other lymphoma classifications, the latest published by the WHO in 2008, but is still used by cancer agencies for compilation of lymphoma statistics.

Low Grade

Malignant lymphoma, small lymphocytic (chronic lymphocytic leukemia)
Malignant lymphoma, follicular, predominantly small cleaved cell
Malignant lymphoma, follicular, mixed (small cleaved and large cell)

Intermediate grade

Malignant lymphoma, follicular, predominantly large cell
Malignant lymphoma, diffuse, small cleaved cell
Malignant lymphoma, diffuse, mixed small and large cell
Malignant lymphoma, diffuse, large cell

High grade

Malignant lymphoma, large cell, immunoblastic
Malignant lymphoma, lymphoblastic
Malignant lymphoma, small noncleaved cells (Burkitt lymphoma)

Miscellaneous

References

↑ MacKenzie RG, Rusthoven JJ (1985). "Management of localized non-Hodgkin's lymphoma". CMAJ 133 (6): 559–64. PMC 1346220. PMID 3896450.

Hematological malignancy/leukemia histology (ICD-O 9590–9989, C81–C96, 200–208)
Lymphoid/Lymphoproliferative, Lymphomas/Lymphoid leukemias (9590–9739, 9800–9839)

B cell
(lymphoma,
leukemia)
(most CD19

CD20)

By
development/
marker

TdT+	ALL (Precursor B acute lymphoblastic leukemia/lymphoma)

CD5+	naive B cell (CLL/SLL) mantle zone (Mantle cell)

CD22+	Prolymphocytic CD11c+ (Hairy cell leukemia)

CD79a+	germinal center/follicular B cell (Follicular Burkitt's GCB DLBCL Primary cutaneous follicle center lymphoma) marginal zone/marginal zone B-cell (Splenic marginal zone MALT Nodal marginal zone Primary cutaneous marginal zone lymphoma)

RS (CD15+, CD30+)	Classic Hodgkin's lymphoma (Nodular sclerosis) CD20+ (Nodular lymphocyte predominant Hodgkin's lymphoma)

PCDs/PP (CD38+/CD138+)	see immunoproliferative immunoglobulin disorders

By infection

KSHV (Primary effusion)
EBV (Lymphomatoid granulomatosis
Post-transplant lymphoproliferative disorder)
HIV (AIDS-related lymphoma)
Helicobacter pylori (MALT lymphoma)

Cutaneous

T/NK

T cell
(lymphoma,
leukemia)
(most CD3

CD4
CD8)

By
development/
marker

TdT+: ALL (Precursor T acute lymphoblastic leukemia/lymphoma)

prolymphocyte (Prolymphocytic)

Cutaneous

MF+variants	indolent: Mycosis fungoides Pagetoid reticulosis Granulomatous slack skin aggressive: Sézary disease Adult T-cell leukemia/lymphoma

Non-MF	CD30-: Non-mycosis fungoides CD30− cutaneous large T-cell lymphoma Pleomorphic T-cell lymphoma Lymphomatoid papulosis type B CD30+: CD30+ cutaneous T-cell lymphoma Secondary cutaneous CD30+ large-cell lymphoma Lymphomatoid papulosis type A

Other
peripheral

By infection

HTLV-1 (Adult T-cell leukemia/lymphoma)

NK cell/
(most CD56)

T or NK

Lymphoid+
myeloid

Acute biphenotypic leukaemia

Lymphocytosis

Cutaneous lymphoid hyperplasia

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