GI and Hernia Flashcards
Odd number walls are ——- and even are ——-
Echogenic; hypoechoic
——— forms the outer echogenic rim
Periserosal fat
Wall should not be more than — mm if distended and — mm if not distended
3; 5
RLQ – McBurney’s point – line between umbilicus and iliac spine, appendix at midpoint
Appendix
Gastroesophageal junction
Anterior to the proximal aorta
Anterior to pancreas and posterior to longer left lobe of liver
Stomach
Gastric Bezoar
accumulated ingested material
Trichobezoars –
Phytobezoars –
Concretions –
hair balls; vegetable matter; inorganic material (sand, asphalt)
Most common benign tumor of the stomach
Leiomyoma
50% in pylorus 25% in body and fundus of stomach Target sign Wall thickening Polypoid or circular
Gastric Carcinoma
3% primary Large Echogenic Wall thickening Spoke wheel or bulls eye appearance
Lymphoma
Lower GI Pathology – Obstruction and Dilation
Fluid filled bowel
Adynamic ileus (obstruction) – possibly increased peristalsing. Dynamic ileus show peristalsing
Thickened walls
Presence of free fluid
Enlargement of appendix because of accumulation of mucous substance
Mucocele of the Appendix
pouch like herniation through the muscular wall of a tubular organ such as stomach, small intestine, but most commonly colon
Diverticulum
– distal ileum, embryological abnormality, small pouch that is a remenant of the connection to the yolk sac during fetal GI development
Meckel’s Diverticulum