Dog: Liver. Hepatic congestion in right-sided heart failure.

Dog: Larynx. Everted laryngeal saccules in brachycephalic airway syndrome.

Dog: Heart. Malignant aortic body tumour (chemodectoma).

Dog: Heart, pulmonic valve. Malignant aortic body tumour (chemodectoma) invading the pulmonic valve.

Dog: Heart. Aortic body tumour (Heart base tumour or chemodectoma).