Mazzoni, Marta B MMarta B MMazzoniKottanatu, LisaLisaKottanatuSimonetti, GiacomoGiacomoSimonettiRagazzi, MonicaMonicaRagazziBianchetti, Mario GiovanniMario GiovanniBianchettiFossali, Emilio FEmilio FFossaliMilani, Gregorio PGregorio PMilani2024-10-112024-10-112011https://boris-portal.unibe.ch/handle/20.500.12422/78785The cause of orthostatic proteinuria is not clear but may often relate to obstruction of the left renal vein in the fork between the aorta and the superior mesenteric artery (=renal nutcracker). However, reports dealing with proteinuria only marginally refer to this possible cause of orthostatic proteinuria. We analysed the corresponding literature.enarticle10.7892/boris.83622065675200028667540002510.1093/ndt/gfq444