Absolute lymphocytosis is seen in
ref to P.JMehta 14/e p374 CLL and brucellosis is also the answer Leukocytosis is white cells (the leukocyte count) above the normal range in the blood. It is frequently a sign of an inflammatory response, most commonly the result of infection, but may also occur following ceain parasitic infections or bone tumors as well as leukemia
SLE
TB
CLL
Brucellosis
General anatomy