Spontaneous kidney tumors in the frog: rate of occurrence in isolated adults.
Kidney tumors in the frog are thought to be virus-caused and naturally transmitted. The present report indicates that natural transmission between mature adults is not a factor in spontaneous tumor development and implies primary infection at earlier stages if a virus is indeed involved. Parasitism and nutritional state appear to be of little significance.
D000230:Adenocarcinoma; D000818:Animals; D001001:Anura; D006801:Humans; D007680:Kidney Neoplasms; D009369:Neoplasms; D011898:Ranidae
FROGS; KIDNEY NEOPLASMS