Hairy Cell Leukemia Revolution Health Group LLC. Date updated: February 02, 2008 Content provided by MayoClinic.com Definition Hairy cell leukemia is a rare, slow-growing cancer of the blo

Hairy cell leukemia University of Maryland Medical Center (UMMC) Reviewed last on: 7/11/2008 Overview Alternative Names Leukemic reticuloendotheliosis; HCL; Leukemia - hairy cell Defin