Case ReportPublished 9 October 2026Case Report: Late-onset BK polyomavirus-associated nephropathy with encephalitis, antibody-mediated rejection, and atypical hemolytic uremic syndrome: a rare overlap causing allograft dysfunction, therapeutic challenges, and multidisciplinary managementJie Zhou · Lichuan Yang · Jiaojiao ZhouFrontiers in Medicinedoi 10.3389/fmed.2026.1981467