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Revista argentina de microbiología

versión On-line ISSN 1851-7617

Resumen

BONAVENTURA, R. et al. BK virus infection in a pediatric renal transplant recipient. Rev. argent. microbiol. [online]. 2005, vol.37, n.3, pp. 153-155. ISSN 1851-7617.

BK Human Polyomavirus causes an asymptomatic primary infection in children, then establishing latency mainly in the urinary tract. Viral reactivation can lead to renal pathology in individuals with impaired cellular immune response. This is particularly important in pediatric transplant recipients, who can suffer a primary infection when immunosupressed. We followed up the case of a 5 years old patient who received a renal transplant in October 2003, and presented damaged graft 45 days after the intervention. The patient suffered 3 episodes of renal function failure between October 2003 and June 2004. Blood, urine, renal biopsy and lymphocele liquid samples were analyzed. A differential diagnosis between acute rejection and infectious causes was established by testing for BK, CMV and ADV viruses, and the cytological study of renal tissue. Laboratory findings together with clinical signs suggest the patient was infected by BK virus. As a final consideration, the great importance of differentiating between acute rejection and BK infection is emphasized, since immunosuppressant management is opposite in each case.

Palabras llave : BK virus; renal transplant; nephropathy.

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