Figure 5From: Abnormal regurgitation in three cows caused by intrathoracic perioesophageal lesionsCarcinoma enclosing and constricting the oesophagus in a Brown Swiss cow. Oesophagus (1) enclosed and constricted by carcinoma (2) showing infiltrative growth in the tunica muscularis in a 9-year-old Brown Swiss cow.Back to article page