Figure 2

Lesions in the pars oesophagea of slaughter pigs according to the method of Hessing et al. [12]. A Score 0 = normal mucosa (the pars oesophagea is delineated by a black dotted line and appears smooth and glistening), B Score 1 = mild hyperkeratosis covering less than 50% of the surface, C Score 2 = severe hyperkeratosis covering more than 50% of the surface, D Score 3 = hyperkeratosis with few erosions (erosions are indicated by black arrows), E Score 4 = hyperkeratosis with several erosions (erosions are indicated by black arrows), F Score 5 = ulceration. The yellowish staining of affected, rough and thickened pars oesophagea mucosa is the result of bile staining [1]. Pictures 1A and 1B are from an earlier, unpublished study since no stomachs with scores 0 or 1 were observed in the current study.