Renal tubular viral cytopathic changes Renal tubular cytomegalovirus inclusions Characteristic intranuclear glassy-appearing basophilic inclusions with surrounding halo (owl's eye-type inclusion) and marked increase in the size of the cell (cytomegaly), particularly in tubular epithelial cells and in endothelial cells. Often accompanied by cytopathic changes including patchy interstitial pleomorphic infiltrate with lymphocytes, plasma cells, and macrophages.