Veterinary Pathology Diagnostic Quiz

1. A cat presents with fibrinous peritonitis and effusion. What is the most likely morphologic diagnosis and etiology?

Ovarian tumor - Etiology: Unknown

Intussusception - Etiology: Unknown

Fibrinous peritonitis, with effusionEtiology- feline infectious peritonitis virus (coronavirus)

Pyometra - Etiology: Bacterial infection

Fibrinous peritonitis with effusion in a cat typically points towards Feline infectious peritonitis virus as the etiology, causing inflammation and fluid accumulation in the abdominal cavity. Pyometra is a uterine infection in cats, while ovarian tumor and intussusception do not typically present with fibrinous peritonitis and effusion.

Explanation

Fibrinous peritonitis with effusion in a cat typically points towards Feline infectious peritonitis virus as the etiology, causing inflammation and fluid accumulation in the abdominal cavity. Pyometra is a uterine infection in cats, while ovarian tumor and intussusception do not typically present with fibrinous peritonitis and effusion.

2. What is the morphologic diagnosis and etiology of tissue from a dog?

Panophthalmitis, pyogranulomatousEtiology- Blastomyces dermatitidis

Sarcoma, Ehrlichia canis

Histoplasmosis, Aspergillus fumigatus

Granulomatous inflammation, Leptospira interrogans

The correct diagnosis is panophthalmitis, a severe inflammation of the entire eye, characterized by pyogranulomatous inflammation. Blastomyces dermatitidis is the etiological agent responsible for this condition. The incorrect answers provide different morphologic diagnoses and etiologies that are not associated with the specific case described.

Explanation

The correct diagnosis is panophthalmitis, a severe inflammation of the entire eye, characterized by pyogranulomatous inflammation. Blastomyces dermatitidis is the etiological agent responsible for this condition. The incorrect answers provide different morphologic diagnoses and etiologies that are not associated with the specific case described.

3. What is the morphologic diagnosis for tissue from a dog?

Lymphosarcoma, canine lymph node

Cystic Rete Ovari, canine ovary

Gastric adenocarcinoma, canine stomach

Hepatoid carcinoma, canine liver

The correct answer is based on the specific morphologic features observed in the tissue sample from a dog. The incorrect answers are examples of other potential diagnoses in different organs of a dog.

Explanation

The correct answer is based on the specific morphologic features observed in the tissue sample from a dog. The incorrect answers are examples of other potential diagnoses in different organs of a dog.

4. What is the morphologic diagnosis and etiology of tissue from a cow presenting with ulcerative stomatitis, acute, multifocal, moderate?

Ulcerative stomatitis, acute, multifocal, moderateEtiology - Malignant catarrhal fever (Alcelaphine gammaherpesvirus)

Necrotizing fasciitis, bacterial etiology

Chronic lymphocytic leukemia, unknown etiology

Vesicular stomatitis, viral etiology

The correct answer describes ulcerative stomatitis with the etiology being Malignant catarrhal fever caused by the Alcelaphine gammaherpesvirus. The incorrect answers involve different conditions with varying morphologic diagnoses and etiologies, highlighting the importance of proper diagnosis in veterinary pathology.

Explanation

The correct answer describes ulcerative stomatitis with the etiology being Malignant catarrhal fever caused by the Alcelaphine gammaherpesvirus. The incorrect answers involve different conditions with varying morphologic diagnoses and etiologies, highlighting the importance of proper diagnosis in veterinary pathology.

5. What is the morphologic diagnosis for tissue from a chicken?

Hyperplasia

Necrosis

Synovitis

Edema

When examining tissue from a chicken, the presence of synovitis indicates inflammation of the synovial membrane in the joints. Necrosis refers to cell death, edema is the accumulation of fluid in tissues, and hyperplasia is the excessive growth of cells.

Explanation

When examining tissue from a chicken, the presence of synovitis indicates inflammation of the synovial membrane in the joints. Necrosis refers to cell death, edema is the accumulation of fluid in tissues, and hyperplasia is the excessive growth of cells.