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 [...]

Splenic Hemangisarcoma in a Cat

Splenic Hemangiosarcoma in a cat:
History: A 13 year old cat was was diagnosed with anemia and an abdominal mass. A fine needle aspirate cytology was consistent with a mesenchymal neoplasia.
Gross Findings:
Histopathology:
Spleen: There are broad sheets of large numbers of polygonal to round cells with abundant eosinophilic cytoplasm that occasionally form blood [...]

Whats Your Diagnosis #2

Whats Your Diagnosis # 2
History:
A 2 year old male castrated Siberian Husky with history of anorexia for an indeterminate amount of time and began vomiting 2 weeks before time of death.
Radiographs: Diffuse hepatomegaly and splenomegaly, pleural effusion, mediastinal lymphadenopathy, pulmonary alveolar disease and a tracheobronchial mass.
Ultrasound exam: Multiple hypoechoic nodules in the liver, [...]

Lymphoma in a Llama

History: A 7 year old intact male Llama had a 3 day history of lethargy, decreased water intake and oliguria. The Llama was febrile with increased lung sounds (R>L). A CBC showed leukocytosis and pre-renal azotemia. An ultrasound showed consolidated tissue in the right thorax.
Gross Findings:
The mediastinal lymph nodes were enlarged. A large soft white [...]

Proliferative Ileitis in a pig – Lawsonia intracellularis

History: A 20 lb pig of unknown age had a history of diarrhea. (Thats all we know)
Gross Lesions:
The ileum and distal jejunum were diffusely thickened, with a cobblestoned appearance to the serosa and corrugated mucosa which was covered in a moderate amount of green to yellow fibrin. The serosal surface of the colon had multiple [...]