Radiology lecture Flashcards
Intraperitoneal organs vs Retroperitoneal organs
Intraperitoneal (SLATD SPRSS)
S = Stomach
A = Appendix
L = Liver
T = Transverse colon
D = duodenum (the first five centimeters and the fourth part)
S = Small intestines (jejunum, ileum and cecum)
P = Pancreas (only the tail)
R = Rectum (only the upper third)
S = Sigmoid colon
S = Spleen
Retroperitoneal
- kidneys
- adrenals
- pancreas
- most of duodenum
- ascending and descending colon
Problems with liver and gallbladder and symptoms
Liver - trauma, cancer, cholestasis
Gall bladder - gallstones, cholecystitis, cancer
(symp - pain, jaundice)
-Gallbladder - SORE RIGHT UPPER QUADRANT
what to do to investigate liver and gallbladder
ultrasound, ct scan, MRI, ERCP (gallstone - straight to ultrasound more clear)
What colour is liquid on a Ultrasound
black - bile and blood
What can be seen with gall stone blocking gall bladder path
Cholecystitis (inflammed gall bladder, cystic duct blocked - gall stones)
- thickened wall
- inflammation, fluid around the gallbladder
- can sometimes see the gallstone (white)
Spleen - what can go wrong
- trauma, cancer , portal hypertension, congenital cycts
- can get inflammed spleen
2 ways to get free air in gut, how to test
trauma , gut perforation (can see it in retroperitonum)
-upper right chest xray , not good on ultrasound
Stomach and what to use
cancer, or mets (CT) - Abdo xray , CT second problem solver
Small bowel
obstruction, crohns, cancer, ischaemia
- Pain, hematemesis, vomiting, weight loss
- can see blown up small bowel sometimes
What is ultrasound best for
Solid things, so good for gall stones, but not free air
-Use for appendicitis
Large bowel and symptoms and investigations
Cancer, infection, appendicitis, IBD, ischaemia
- altered bowel habits, PR blood, malaena
- Abdo xray, colonoscopy, barium enema, CT or CT colonoscopy
Pancrease
Pancreatitits, cancer, trauma, diabetets
When is IV contrast and oral contrast used?
IV - used to enhance liver, spleen, kidneys and vessels - CT and MRI
Oral - enhance the gut CT