Non-Infectious Intestinal Diseases Flashcards
what are some developmental intestinal diseases?
atresia
hernias
what is the most common type of segmental atresia?
atresia coli
what is a hernia?
passage of mesenteric fat or intestine through a foramen
what are some congenital hernias?
umbilical
diaphragmatic
inguinal/scrotal
what are some traumatic hernias?
diaphragmatic
perineal
______________ may both predispose and be a result of a perineal hernia
tenesmus
what may a perineal hernia involve?
fat
rectum
urinary bladder
prostate
small intestine
what are the types of mechanical obstructions?
intraluminal
extraluminal/intramural
why is there a high risk of perforation with linear foreign bodies?
sawing action
what are some causes of large colon impactions in horses?
poor quality feed
dehydration
poor dentition
what are the most common locations of large colon impaction in horses?
pelvic flexure
junction of right dorsal and transverse colon
what can cause a sand impaction?
horse grazing on sandy soil
feeding hay on sand
what makes up enteroliths in horses?
magnesium ammonium phosphate (struvite) around nidus (hair or foreign object)
what are some extraluminal/intramural obstructions?
hernias
intussusceptions
volvulus
pendunculated lipoma
mural or extramural neoplasm
if you see intussusception in an older animal, what is likely?
neoplasia
who can large intestine volvulus be seen in?
horses
what does prognosis of large colon volvulus in horses depend on?
vascular compromise
what can be seen with small intestinal volvulus in dogs?
mesenteric small intestine volvulus: severe shock and emergency surgery required
how does a lipoma cause an obstruction or strangulation?
lipoma on stalk encircles small intestine