Gallbladder (LS)

Question 1

Cholelithiasis (Gallstones) occur in what 2 species?

Answer 1

• Ruminants - common
• Dogs - occasional

Question 2

Why are Choleliths (gallstones) X-ray transparent?

Answer 2

b/c they are cholesterol based

Question 3

Pathogenesis of Cholelithiasis?

Answer 3

• 2º to chronic, mild cholecystitis & distrubances of the resorbtive activities of the bladder
• bile salts are removed faster than the stone-forming compounds

Question 4

Etiology of Gallbladder Obstruction

Answer 4

Inflammation → cholecystitis, pancreatitis

Question 5

Causes of Acute Cholecystits?

(2)

Answer 5

• Rift Valley Fever = rumis
• ICH = dogs

Question 6

Lesions of Acute Cholecystitis?

Answer 6

edema

hemorrhages

Question 7

Cause of Fibrinous Cholecystitis in calves?

Answer 7

acute Salmonellosis → S. enteritidis, serotype dublin

Question 8

Causes of Chronic Cholecystitis?

Answer 8

• prolonged bacT infection of the biliary tree
• ongoing irriation from choleliths or gallbladder parasites

Question 9

What is the most common type of Cholangitis?

Answer 9

Neutrophilic (suppurative) cholangitis

Question 10

Etiology of neutrophilic cholangitis?

Answer 10

ascending bacT infections from the GIT

Question 11

Type of Cholangitis that occurs most frequently in cats older than 4 years w/ icterus due to intrahepatic cholestasis?

Answer 11

Lymphocytic Cholangitis

Question 12

4 Lesions of Lymphocytic Cholangitis?

Answer 12

• inflammatory cells at the periphery of the bile ducts
• biliary hyperplasia
• hepatic or biliary fibrosis
• intrahepatic cholestasis

Question 13

Trimethoprim sulfa drugs in dogs have been implicated in what uncommon syndrome?

Answer 13

Destructive Cholangitis