Whats Your Diagnosis #1

Whats your diagnosis? #1 (last updated July 10th)

A 3 week old DSH kitten died suddenly after 2 days of diarrhea.

Differential Diagnosis for Multifocal liver necrosis in a kitten:
Viral:
FIP
Bacterial:
Salmonellosis
Tularemia
Yersinia spp
Nocardia spp
E. coli
Clostridium piliforme
Protozoal:
Toxoplasma gondii
Fungal:
Histoplasmosis
Here are the histo pics:

There are multifocal areas of necrosis with very little associated inflammation in the liver. We [...]

Aspergillus pneumonia in a cat

History: Two DSH cats from the same household each became sick with fever, lethargy, and respiratory distress. Treatment was tried but unsuccessful.
Gross Findings: Skin ulcers, hemothorax, pulmonary hemorrhage and multifocal 4-5 mm pulmonary nodules.

Histopath diagnosis:
Lung: Pyogranulomatous bronchopneumonia, severe multifocal, with vasculitis, hemorrhage and intralesional fungal hyphae consistent with Aspergillus sp.

Trachea: Pyogranulomatous tracheitis, [...]

Streptococcus equi ssp zooepidemicus meningitis in a cat

History: 8 yr old female DSH, Head tilt and ataxia
Gross Path: The tympanic bullae were filled with purulent exudate bilaterally
Morphologic Diagnosis:
Brain: Diffuse meningoencephalitis, suppurative, chronic with perivascular cuffing.
Spinal cord: Multifocal meningitis, suppurative, chronic, with axonal degeneration and macrophages in the ventral and lateral funiculi.
Comment: We cultured Streptococcus equi spp zooepidemicus from the exudate [...]