A Bizarre Progression Of Chronic Lymphocytic Leukaemia Into Diffuse Large B-Cell Lymphoma.

A 65-year-old male presented with complaints of weakness, lethargy, abdominal pain, and low-grade fever for the last few months. His examination revealed generalized lymphadenopathy and splenomegaly. A subsequent laboratory workup revealed atypical lymphoid cells with prominent double-bright positivity of CD19 and CD5 markers.