label: Chronic Lymphocytic Leukemia with Immunoglobulin Heavy Chain Variable-Region Gene Somatic Hypermutation
label_lc: chronic lymphocytic leukemia with immunoglobulin heavy chain variable-region gene somatic hypermutation
description: Chronic lymphocytic leukemia characterized by the presence of somatic hypermutation within the immunoglobulin heavy chain gene variable region of neoplastic clones. Patients have a better prognosis as compared to those with unmutated immunoglobulin heavy chain gene variable region rearrangements.