<prompt> Burkitt;s lymphoma is positive for-CD5CD 15CD 20CD 25  <response>: Burkitt lymphomas are tumours of mature B cells that express surface IgM, CD19, CD20, CD10 and BCL6 ,a phenotype consistent with a germinal centre B cell origin. Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 597 