Detection of early malignant lymphoma in slaughtered cattle.

were passing meat inspection. Meat inspectors were requested to submit lymph nodes that appeared abnormal as to size, color, or consistency. A total of 2843 dairy animals3 and 6791 beef animals was inspected on collection days. Lymph nodes were submitted from 736 cattle. Four dairy cattle were found to have malignant lymphoma following the histopathologic study. Two of these cows with extensive lesions were condemned by the meat inspectors. The other 2 animals, each with one abnormal lymph node, were passed for human consumption.