Abstract
A 7-year-old Holstein cow manifested coughing at first and then rhinorrhea, pyrexia, markedly rough vesiculer respiration of the left lung, and mild inspiratory dyspnea persistently. Cold edema appeared later in the dewlap and udders. Laboratory examination revealed anemia, an obvious decrease in A/G ratio, an increase in fibrinogen and gamma-globulin, a decrease in serum albumin, and a strongly positive Gross' test.
Symptomatic treatment was performed in vain and with a bad prognosis the cow was sacrificed about 75 days later. Autopsy revealed a neoplasm twice as large as the human head in the diaphragmatic lobe of the left lung. Histologically, this case was diagnosed as primary pulmonary (bronchial) cancer, a rather rare type of tumor in Japan.
