Cat: Thorax (pleural space) and lungs. Pleural effusion, serous, acute with wet/edematous and congested lungs due to acute congestive heart failure (hypertrophic cardiomyopathy)..

Cat: Heart. Cardiomegaly with biventricular dilation (end-stage hypertrophic cardiomyopathy).

Cat: Distal aorta. Aortic thromboembolus (saddle thrombus) secondary to hypertrophic cardiomyopathy.

Cat: Descending aorta and left renal artery. Saddle thrombosis-intraluminal thrombus, focal, subacute with luminal occlusion.

Cat: Heart. Cardiomegaly, biventricular dilation, left atrial thrombus.

Cat: Spleen. Splenomegaly due to multiple myeloma.

Dog: Liver and spleen. Hepatomegaly and splenomegaly with leukemia.

Cat: Spleen. Splenomegaly in acute lymphoblastic leukemia.

Other, Ferret: Spleen. Splenomegaly and splenic congestion, barbiturate euthanasia.

Dog: Spleen. Splenomegaly, metastatic chemodectoma and extramedullary hematopoiesis.

Dog: Spleen. Multicentric lymphosarcoma, diffuse splenomegaly.

Other, Ferret: Abdomen. Splenomegaly due to extramedullary hematopoiesis .

Other, Ferret: Abdomen. Splenomegaly due to extramedullary hematopoiesis.

Dog: . Splenomegaly and icterus in intravascular hemolysis.