Acute Renal Failure due to Leukaemic Infiltration in Chronic Lymphocytic Leukaemia

Figure 1

(a) Bone marrow biopsy revealed nodular paratrabecular and intertrabecular infiltration with small lymphocytes which appeared as mature cells (HE ×200). (b) Monoclonal B lymphocytes were positive for CD5, CD20, CD23, and CD79 in bone marrow (after the specimens were fixed in 10% formalin and embedded paraffin wax the immunohistochemical staining was performed using a Ventana immunostainer (Ventana Benchmark XT, ×200)).

(a)

(b)