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Hairy Cell Leukemia: Comprehensive Guide to Diagnosis, Treatment, and Prognosis

1. Introduction 1.1 Definition of Hairy Cell Leukemia Hairy Cell Leukemia (HCL) is a rare, indolent B-cell neoplasm characterized by the presence of malignant B lymphocytes with distinctive “hairy” projections on peripheral blood smear. First described in the 1950s, it…