title: Frequency of hydronephrosis in Wistar rats.
abstract: Kidneys from 1806 Wistar rats were examined grossly for hydronephrosis and ureteral dilation. Hydronephrosis was seen more often on the right side (11%) than the left (0.3%). Overall frequency of hydronephrosis in males (181/1305) was greater than in females (23/501), and the frequency was statistically greater in male rats aged 5,6,8 and 9 weeks than in age-matched females.
mesh_terms: D000818:Animals; D005260:Female; D006869:Hydronephrosis / Q000662:veterinary*; D008297:Male; D051381:Rats; D012376:Rodent Diseases / Q000453:epidemiology*; D012737:Sex Factors