Alimentary System Review Flashcards
Term for lacteal dilation, the most commonly reported cause of protein-losing enteropathy in dogs
Lymphangiectasia
Primary diseases are rare in the oral cavity. What disease is the exception to this involving the tongue?
“Wooden Tongue” - Actinobacillosis; Chronic pyogranulomatous stomatitis caused by Actinobacillus ligniersii
Name 3 infectious agents that may bring on, or be involved in, the pictured lymphoplasmacytic gingivitis and stomatitis
FeLV, FIV, and/or FCV
Primarily seen in lambs and goat kids 3-6 mo, this disease manifests as pustular dermatitis at the corners of the mouth and clinical signs include the animals not suckling or grazing
Contagious Ecthyma
Provide an MDx for the lesion and breed disposition
Fibrous hyperplasia;
boxers
Give an MDx for the neoplastic lesion and the tissue of origin
Fibromatous epilus
origin: periodontal ligament
Most common oral malignancy in dogs?
Oral melanoma
very aggressive, highly invasive
Most common oral malignancy in cats?
Quarter Horse gelding presents with marked emaciation. State the MDx.
Fibrosarcoma
What 3 species share ventricular septal defects as at least one of their most common congenital heart defects?
cattle, sheep, and horses
Most commonly seen in dogs, acquired megaesophagus is described as ____ and name 2 causes.
Diffuse (because the ligamentum arteriosum formed properly)
Idiopathic (in mature dogs mainly)
or Myasthenia gravis
Dog with chronic vomiting and anorexia, and granulomatous nodules in the esophagus. EtDx?
Etiology?
- *Parasitic esophagitis**;
- Spirocerca lupi;*
can lead to neoplastic transformation/sarcomatous lesions (osteo/fibro-sarcomas) and Aortic rupture*
Potential zoonosis. Name the agent and clinical significance.
Gongylonema pulchrum; no clinical consequence in ruminants
S.lupi can result in this neoplasm. Give a MDx.
esophageal osteosarcoma
Complications of ruminal acidosis. Describe the lesion.
Plaques and coalescing areas of necrosis on rumenal mucosa
What is the main complication of F.necrophorum rumenitis?
liver abscesses
6mo heifer with a history of grain overload. Categorize the rumenitis.
Mycotic; Aspergillus
hemorrhagic, angiocentric (submucosal venular thrombosis)
Gastric Dilatation-volvulus is most common in large, deep-chested dogs like Rhodesian ridgeback breeds. Pathogenesis?
Strangulation of vascular outflow->distention->congestion-> venous infarction of the stomach
Gastric dilation and rupture is most common in what species?
Describe the antemortem features.
Horses
edema and hemorrhage
Cutaneous mast celltumors in dogs can lead to gastric ulcers. How?
Histamine released into blood–>binds to parietal cell receptors in stomach–>increase HCl secretion
In the horse, why is the right dorsal colon predisposed to NSAID-induced gastric ulcers and erosion?
It’s the ONLY section of the colon with NET WATER SECRETION
Abomasitis/Braxy in a lamb.
- Etiology?*
- *MDx**?
C.septicum;
necro-hemorrhagic abomasitis with submucosal emphysema
Why is this lesion special and unique to one species?
Gastric squamous cell carcinoma in horses;
half of their stomach is covered by squamous type of mucosa
this is non-glandular
This lesion is an extension of a gastric squamous cell carcinoma. What do we call it and how do we describe the route in which it metastasized?
- *Peritoneal carcinomatosis;**
- transcoelemic spread*
