Figure 1From: Polyclonal gammopathy after BKV infection in HSCT recipient: a novel trigger for plasma cells replication? Electron micrograph of polyomavirus-infected uroepithelial cells of the patient. Big clusters of viral particles in the nucleus are shown (1000Â nm) (A); the organelles have started to degrade, the cytoplasm is homogenous with virus lining the plasma membrane. (Detail, 500Â nm) (B).Back to article page