80 year old, asymptomatic man present with a Total Leucocyte Count of 100,000, with 80% lymphocytes and 20% PMC's. What is the most probable diagnosis?
HIV
CML
CLL
TB
An elderly asymptomatic patient presenting with an incidental finding of absolute lymphocytosis suggests the possible diagnosis of Chronic Lymphoid Leukemia (CLL). Ref: Harrison's Principles of Internal Medicine, 17th Edition, Page 693; 16th Edition, Page 648; Davidson's Principles and Practice of Medicine, 20th Edition, Page 1046