chronic lymphoblastic leukaemia

CLL - most common of chronic lymphoid leukaemias
Etiology Indolent monoclonal proliferation of well-differentiated lymphocytes - most commonly B cells. Defined by >3/12 lymphocytosis.
Epidemiology peak incidence age 60-80y, male:female 2:1
Clinical presentation Lymphadenopathy, hepatosplenomegaly (less common)
FBC: anaemia (potentially AIHA), thrombocytopaenia, lymphocytosis
Investigations Blood film: smear/smudge cells
Bone marrow:
Binet/Rai staging
Complications warm autoimmune haemolytic anaemia
hypogammaglobulinaemia → recurrent infections
transformation to high grade lymphoma
Management If asymptomatic - active surveillance
Else - tyrosine kinase inhibitors (...tinib) (amongst others)