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WHO Classification of Tumours
Hairy cell leukaemia
Tumours of haematopoietic and lymphoid tissues


Hairy 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.

> Related Topics
Splenic marginal zone lymphoma
Introduction: Classification of lymphoid neoplasms