9768/1 T-gamma lymphoproliferative disease


Definitions

Tumours of haematopoietic and lymphoid tissues
ICD-O-3 topography code: C42 and C77

A term once used for a T-cell peripheral neoplasm characterized by a persistent (>6 months) increase in the number of peripheral blood large granular lymphocytes, without a clearly identified cause 1
 
Jaffe ES, Harris NL, Stein H, Vardiman JW (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Haematopoietic and Lymphoid Tissues.
3rd Edition
IARC Press: Lyon 2001



. The term is no longer currently used. Most such cases represented T-cell large granular lymphocytic leukemia.