Chronic Lymphoproliferative Disorders Group Overview Print The Chronic Lymphoproliferative Disorders Group at Mayo Clinic evaluates and treats patients with excess blood lymphocytes and disorders of the lymph nodes and spleen, including those diagnosed with: Chronic lymphocytic leukemia Hairy cell leukemia Large granular lymphocyte disorders Lymphocytosis Natural killer cell leukemia Prolymphocytic leukemia Request an appointment May 09, 2023 Print Share on: FacebookTwitter HematologyDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals Chronic Lymphoproliferative Disorders GroupRequest an AppointmentOverview ORG-20201297 Medical Departments & Centers Hematology