Salt Toxicity in a group of Pigs

Submitted by B. Bawa
History: Four approximately 10 weeks old piglets were presented for necropsy on 06/13/08. The pigs were found with seizures and paddling. There were 27 pigs per pen and most normal and 4 down. The pigs would dog sit, head back, chomp and froth then go down. The waterer button was stuck [...]

Histoplasmosis in a Cat- Histoplasma capsulatum

History: A 4 year old cat had been inappetant for 3 weeks with normal CBC/ CHEM. It was treated with Depo-Medrol and 2 weeks later was severely dyspneic and had anisocoria.
Gross Findings:
Lungs: Multifocal to coalescing granulomas throughout the lung
Spleen: Focal granuloma
Meninges: Diffuse suppurative meningitis
Comment: An impression smear was made of [...]

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 [...]