Gastrointestinal Tract Flashcards
what should you look at in each organ of the gastrointestinal tract?
wall thickness
wall layering
contents
motility
how many contractions per minute does the stomach have?
4-5 contractions/min
where is the mucosa thickest?
duodenum
small bowel/intestine
what are the walls like in the colon?
very thin
what are intussusceptions usually associated with?
other diseases
rarely on own
what can cause mechical ileus (obstruction)?
foreign body
intussusception
neoplasia
what is seen with linear foreign bodies?
no obstruction
plication
what can be found on ultrasound with enteritis?
ultrasound can be normal
wall thickening
corrugation
regional steatitis
reactivee lymphadenopathy
decreased motility
what is corrugation?
undulation of mucosa +/- submucosa
where can ulcers be?
stomach
duodenum
colon
what can be the etiology of ulcers?
inflammatory and neoplastic
what does neoplasia look like on ultrasound?
hypoechoic mass or thickening
focal loss of wall layering
lymphadenopathy
decreased motility
mechanical ileus
what types of neoplasia are common in dog gastrointestinal tracts?
carcinoma
lymphoma
spindle cell tumors
what are the two presentations of gastrointestinal lymphoma on ultrasound?
mass
multisegmental or diffuse thickening of muscular layer: no loss wall layering
