Red blood cell containing granules

Red blood cells containing granules inside from the urinary sediment of a patient with cancer of the bladder at end stage. Unstained, X400.



Red blood cells from the urinary sediment of the preceding, but Sternheimer-Malbin stain. The granules stained purple with crystal violet, X400.



Red blood cells from the urinary sediment of the preceding, but Sternheimer stain. The granules stained pink with pyronine B, X400.
These granules are stained with supervital satins (Sternheimer-Malbin stain and Sternheimer stain), but are not stained Giemsa stain and Hemosiderin stain. I don't know what are these, but I suspect that they are something like Heinz body. However, the patient does not take splenectomy, and red blood cells in the peripheral blood are normal.