Haemophagocytic syndrome in a dog

Haemophagocytic syndrome in a dog
History: A 4 year old female spayed Border Collie mix had a 10 day history of refractory IMHA/ ITP with possible DIC.  She had abdominal effusion which was determined to be a modified transudate.
Gross Lesions:
Icterus of mucous membranes and mesentery. The abdominal cavity contained approximately 100-200 ml of bright orange clear fluid.
The spleen was [...]

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 [...]

Luteinizing follicular cyst in a dog

Luteinizing follicular cyst in a dog
History: Tissue from an 11 month old female Great Dane.  The tissue was removed during a routine spay surgery and submitted for histopath due to abnormal appearance.
Ovary:  In each section examined there are primary follicles present in a fibrovascular stroma.  There are two normal corpora lutea present consisting of a large solid [...]

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 [...]

Interstitial Cell Tumor in a dog

Interstitial Cell Tumor in a dog
History:  The testicles from an 11 year old male German Shepherd were submitted for histopathology after castration. The dog had been showing signs of feminization and endocrine disease such as flank alopecia, pruritis, enlarged mammae, small prepuce, and testicular atrophy.
Histopathology:
Two testicles were submitted for histopathology.
The smaller testicle contains an expansile encapsulated neoplasm composed [...]

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 [...]

Aortic mineralization in a dog

Aortic mineralization in a dog
 
History:  A 19.09kg, 10 year old canine, male Aussie was euthanized due to chronic kidney disease with azotemia and hyperphosphatemia with anemia (PCV 15-18 %). The owner is concerned about 2,4 D Herbicide toxicity.
 
Gross Lesions: (sorry no gross pictures; see below for histo)
The conus of the aorta had multifocal 1mm white [...]