Polyomavirus in the urine: Follow‐up study

Abstract
This study was undertaken to determine the significance of polyomavirus nuclear inclusions in urine cytology specimens. Thirty-two such cases were identified and patient follow-up was instituted. We have determined that there is no detectable urologic damage in such patients. In a minority of cases inclusions were found in subsequent urines but they ultimately disappeared within 3 mo. In a minority of the patients (35 percent) there was evidence of diseases associated with immunosuppression or administration of immunosuppressive drugs.