PKD2 and autosomal dominant polycystic kidney disease: We adopted the recently suggested nosology, describing the disease and the genetic etiology of ADPKD, classifying the patients as ADPKD-PKD1T/NT or ADPKD-PKD2, as shown in Table 2 (Eckardt et al., 2015; Cornec-Le Gall et al., 2017).