Gross- and histo-pathology associated with Salmonella infection in wild passerine species. A: Greenfinch crop: multifocal necrotic ingluvitis. B: Greenfinch crop: diffuse necrotic ingluvitis. C: Greenfinch crop (Haematoxylin and Eosin stain): one central and one peripheral nodule of necrotic crop mucosa and submucosa with haemorrhage and surrounded by zones of infiltrating leucocytes. D: Greenfinch liver (Haematoxylin and Eosin stain): multifocal hepatic necrosis surrounded by a zone of macrophages and multinucleate giant cells which is further surrounded by lymphocytes.
Hughes et al. BMC Veterinary Research 2008 4:4 doi:10.1186/1746-6148-4-4