Renal agenesis in guinea pig and oppossum.
Complete absence of kidneys was observed in 3 neonatal guinea pigs which died 2-3 da after birth. Congestion of intestines and other organs was also observed. Renal agencies in the guinea pigs appeared to be of rare occurrence. Agenesis of right kidney was observed in 2 of over 500 opossums examined. Both opossums were males, and the corresponding ureters were smaller in diameter than the contralateral ureters. The left kidney was enlarged as a result of compensatory hypertrophy. The lumina of right ureters were found to be obliterated on microscopic examination.
D000818:Animals; D005260:Female; D006168:Guinea Pigs; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D009893:Opossums; D012376:Rodent Diseases / Q000151:congenital*