9940/3 Hairy cell leukemia


Hairy cell leukaemia variant
Leukaemic reticuloendotheliosis


Tumours of haematopoietic and lymphoid tissues
ICD-O-3 topography code: C42 and C77
ICD10: C91.4

/span>airy cell leukaemia (HCL) is an indolent neoplasm of small mature B lymphoid cells with oval nuclei and abundant cytoplasm with "hairy" projections involving peripheral blood (PB) and diffusely infiltrating the bone marrow (BM) and splenic red pulp.