Amyloidosis and Diabetes in a dog

Amyloidosis and Diabetes in a dog
History: A twelve year old castrated male Miniature Schnauzer was presented with diabetic ketoacidosis and a 48 hour history of vomiting, polyuria, and polydypsia.   The dog also had a chronic history of urinary tract infection.  The dog died of cardiac arrest.
Gross Lesions: (no gross pictures)
Heart:  Endocardiosis
Lungs:  Diffuse congestion and edema
Eye:  Corneal [...]

Epidural steatitis and vertebral osteomyelitis in a dog

Epidural steatitis and vertebral osteomyelitis in a dog
 
History:  A 1 year old spayed female bulldog mix canine became acutely non-ambulatory, and both rear limbs were hyporeflexive.
Gross Necropsy:
There was a 7 cm x 3 cm x 3 cm abscess in the epaxial musculature of the lumbar spine containing red-brown purulent fluid. The muscles surrounding the abscess including the epaxial and [...]

Persistent Right Aortic Arch/ Megaesophagus in a dog

Persistent Right Aortic Arch/ Megaesophagus in a dog
History:  An 8 week old female German Shepherd with vomiting and anorexia for the past 4 weeks. 
Gross Findings: 
The aorta was present on the right side of the trachea and esophagus.  There was a 1 cm long thick white band connecting the aorta and the pulmonary artery which was present on [...]

Ventricular Septal Defect in a foal

Ventricular Septal Defect in a foal
 
History: A 1 day old  foal had been unable to stand or nurse,  had contracted tendons (more severe in left forelimb),  and had been unable to sit sternal.  The foal also had parrot mouth.
Gross Findings:
The right ventricle of the heart was dilated and thickened. The right ventricular free wall measured 1 cm [...]

Diffuse soft tissue mineralization in a cat

Diffuse Soft Tissue Mineralization in a Cat
Contributer: C. Ganta
History: A five month old female domestic short hair cat had chronic cough which was non-responsive to antibiotics or vaccines. Tracheal wash bacterial culture was negative, mycoplasma by PCR was negative and toxoplasma serology was negative.
Gross Lesions:
Lungs: The lungs failed to collapse and were white, firm, [...]

West Nile Virus Encephalitis, Myocarditis, and Myositis in a Hawk

West Nile Virus Encephalitis, Myocarditis, and Myositis in a Hawk
History: A three month old Hawk with lethargy, voice change and green urates for 3 days.
Clinical Pathology: Monocytosis and toxic heterophils.
Gross Lesions:
The keel was mildly prominent but there were adequate body fat stores, and minimal autolysis. The spleen was diffusely tan with small multifocal dark red [...]

Blackleg in a herd of Steer- Clostridium chauvoei

History: A steer was found dead with no prior clinical signs. The farm had 12 animals die (of 550) over the past 10 days.
Gross Findings:
Subcutaneous and muscular emphysema throughout the animal. There was moderate to severe retroperitoneal and mediastinal edema. The hind-limb skeletal muscles had multiple dark red areas and were emphysematous. They [...]