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Figure 2: Neoplastic cells in the biopsy of left arm are strongly positive for CD3 (a), CD56 (b), granzyme B (c), perforin and Ki-67(d). (e) Polymerase chain reaction (PCR) using a primer for the V and J regions of T-cell receptor (TCR) γ chain showed monoclonal rearrangement, indicating the presence of a monoclonal T-cell population

Figure 2: Neoplastic cells in the biopsy of left arm are strongly positive for CD3 (a), CD56 (b), granzyme B (c), perforin and Ki-67(d). (e) Polymerase chain reaction (PCR) using a primer for the V and J regions of T-cell receptor (TCR) γ chain showed monoclonal rearrangement, indicating the presence of a monoclonal T-cell population