Peripheral Blood Showing Markedly Increased WBC

April 21, 2011
Robert D. Cardiff, MD, PhD
Robert D. Cardiff, MD, PhD

A 54-year-old female presents with symptoms of fatigue, unexplained weight loss, enlarged spleen and night sweats. Peripheral blood shows a markedly increased WBC. Examine the blood smear. Click here to see the blood smear as a whole slide image.

Your diagnosis is: