Abstract
We report an unusual sonographic presentation of late-onset hemorrhagic cystitis caused by BK virus infection in an 8-year-old who had undergone hematopoietic stem cell transplantation for treatment of relapsed acute lymphoblastic leukemia. Sonography showed the presence of multiple bladder nodules in a background of diffuse bladder wall thickening. The dominant bladder nodule showed increase in size on serial sonograms and was vascularized on Doppler interrogation. Biopsy confirmed BK virus-associated cystitis. Recognition of this sonographic appearance in the appropriate clinical setting might obviate the need for biopsy in these children.
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Schechter, T., Liebman, M., Gassas, A. et al. BK virus-associated hemorrhagic cystitis presenting as mural nodules in the urinary bladder after hematopoietic stem cell transplantation. Pediatr Radiol 40, 1430–1433 (2010). https://doi.org/10.1007/s00247-010-1556-3
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DOI: https://doi.org/10.1007/s00247-010-1556-3