GI and Hernia Flashcards
(26 cards)
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
If it becomes inflamed can mimic appendicitis
Meckels Diverticulum
Inflammation at terminal ileum, colon or both – reoccurring
Crohn’s Disease
Defect in the abdominal wall
Protrusion of peritoneum and bowel through the defect
Hernia
Most common anatomy involved are ——- area, ——– area and —— rings
umbilical; femoral; inguinal
cannot be pushed back into abdominal cavity
Incarcerated
when the blood supply is cut off, leading to necrosis and requiring resection
Strangulation
Most common hernia
More prevalent in males
Inguinal Hernias
most common, can be congenital, can extend into the scrotum or labia, passes anterior to inferior epigastric artery
Indirect
weakness of fascia which can either stretch or tear do not extend into scrotum or labia
Direct