Dog: Elbow joint. Distal humerus: mild to moderate chronic degenerative joint disease. Linear grooves to irregularly shaped foci of granular/roughened articular cartilage erosion (fibrillation) are accompanied by multifocal osteophytes and synovial villous hyperplasia.

Dog: Abdomen. Hemoabdomen secondary to adrenal cortical carcinoma invading the caudal vena cava.

Dog: Adrenal gland + kidney. Adrenal gland, right: probable adrenal cortical carcinoma.

Dog: Vena cava. Adrenocortical neoplasm (right adrenal gland) with invasion and rupture of the phrenico-abdominal vein and caudal vena cava.