A Retrospective Study of 586 Tumours in Brazilian Cattle

Records from 6,706 necropsy examinations of cattle performed over a 45-year period were surveyed and 586 cases of neoplasia were identified. The organ system most frequently affected by neoplastic disease ( n = 139 cases) was the alimentary tract. This finding was attributed to a high incidence of s...

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Bibliographic Details
Published in:Journal of comparative pathology 2011-07, Vol.145 (1), p.20-24
Main Authors: Lucena, R.B., Rissi, D.R., Kommers, G.D., Pierezan, F., Oliveira-Filho, J.C., Macêdo, J.T.S.A., Flores, M.M., Barros, C.S.L.
Format: Article
Language:English
Subjects:
Animals
Brazil - epidemiology
Cattle
Cattle Diseases - epidemiology
Cattle Diseases - pathology
Female
Male
neoplasia
Neoplasms - epidemiology
Neoplasms - pathology
Neoplasms - veterinary
Retrospective Studies
retrospective survey
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Summary:Records from 6,706 necropsy examinations of cattle performed over a 45-year period were surveyed and 586 cases of neoplasia were identified. The organ system most frequently affected by neoplastic disease ( n = 139 cases) was the alimentary tract. This finding was attributed to a high incidence of squamous cell carcinoma of the upper alimentary tract associated with the chronic ingestion of bracken fern ( Pteridium aquilinum). This carcinogenic plant was also associated with a relatively high incidence ( n = 35 cases) of urinary bladder tumours (enzootic haematuria). Tumours of the alimentary tract were followed, in decreasing order of frequency, by tumours of the skin and subcutis ( n = 129 cases), haemopoietic tissue ( n = 101 cases), the eye and periorbital tissues ( n = 88 cases), the urinary system ( n = 44 cases), the female reproductive system ( n = 21 cases), the endocrine system ( n = 16 cases), the liver and pancreas ( n = 12 cases), the nervous system ( n = 6 cases), the respiratory system ( n = 6 cases) and the mammary gland ( n = 1 case). The primary anatomical location of 16 tumours was undetermined.
ISSN:0021-9975
1532-3129
DOI:10.1016/j.jcpa.2010.11.002