TABLE 1.

Diagnostic Categories for Reviewers

Benign/reactive	ALCL (ALK−)	NK/T-cell lymphoma, nasal type
Atypical lymphoid infiltrate	ALCL (ALK+)	BPDCN
Lymphoma (unable to classify)	ALCL	MF
B-cell NHL (specify type)	PTCL-NOS	T-cell or NK-cell lymphoma (unable to specify further)
Hodgkin lymphoma (specify type)	ATLL	Other T-cell lymphoma (specify WHO type)
T-precursor LBL	EATL	Other (specify)
AITL	HSTCL

ATLL indicates adult T-cell leukemia/lymphoma; BPDCN, blastic plasmacytoid dendritic cell neoplasm; EATL, enteropathy-associated T-cell lymphoma; HSTCL, hepatosplenic T-cell lymphoma; MF, mycosis fungoides.