Nielsen S W, Mackey L J, Misdorp W
Bull World Health Organ. 1976;53(2-3):237-46.
The most frequent renal tumours of animals are renal cell carcinoma and nephroblastoma. Renal cell carcinomas are seen mainly in dogs and cattle and nephroblastoma is encountered in pigs, puppies, and calves. Renal cell carcinomas are usually papillary in the dog. They show a marked propensity for vascular invasion, penetration of the posterior vena cava, and subsequent pulmonary metastasis. Nephroblastoma, which is morphologically identical to Wilms' tumour of children, is almost always a benign tumour in animals. It is one of the most frequent neoplasms of pigs, possibly owing to the fact that most pigs are slaughtered (and examined) when a few months old. Lymphosarcoma involving the kidney is particularly frequent in the cat, but is also seen in other species as part of a generalized disease.
动物中最常见的肾肿瘤是肾细胞癌和肾母细胞瘤。肾细胞癌主要见于犬和牛，肾母细胞瘤则见于猪、幼犬和犊牛。犬的肾细胞癌通常为乳头状。它们具有明显的血管侵袭倾向，可穿透后腔静脉并随后发生肺转移。肾母细胞瘤在形态上与儿童的威尔姆斯瘤相同，在动物中几乎总是良性肿瘤。它是猪最常见的肿瘤之一，这可能是因为大多数猪在几个月龄时就被屠宰（并检查）。累及肾脏的淋巴肉瘤在猫中尤为常见，但在其他物种中也可作为全身性疾病的一部分出现。
