Fig. 10
From: Current status and future aspects of kidney transplantation in Japan
Syngeneic transplantation of metanephric primordia in pigs. Cloned pig metanephroi were removed from embryos and syngeneically transplanted into the omenta of recipient pigs. 5 weeks after transplantation, the metanephroi were > 1 cm long (a) and exhibited ureters (b). 8 weeks after transplantation, blood vessels from the omentum were integrated into the metanephros, which was approximately 3 cm long (c), but the metanephros developed hydronephrosis (d). Photographs were modified from figure 1 in Yokote and associates [46]. U ureter; BV blood vessel