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Flashcards in Radiology Deck (25):
1

What does gas look like on an ultrasound?

white

2

Pros/cons of a CT scan

Pros :
-Creates a 3D image of an organ
-high contrast imaging
- for cancer (tumors), injuries, or abnormalities inside the body

Cons:
-higher risks for cancer, especially lung and colon cancer, and leukemia
-Uses radiation, which increases our chances of malignancy
-More expensive

3

Pros/uses vs cons of an ultrasound

Pros:
-Your doctor may order an ultrasound if you’re having pain, swelling, or other symptoms that require an internal view of your organs.
-less expensive
-no radiation

Cons:
-obstruction of other organs, gas, stools etc

4

Via CT the colon looks?

'bubbly'

5

Via CT the SI looks?

like fluid

6

Intraperitoneal

SALTeD SPuRSS
Stomach
Appendix
Liver
Transverse colon
Duodenum(5cm)

Sigmoid colon
Pancreas (tail)
Rectum (upper 1/3)
Spleen
Small intestines (jejunum, ileum, caecum)

7

Retroperitoneal

P: pancreas (except tail)
U: ureters.
C: colon (ascending and descending)
K: kidneys.
E: (o)esophagus.
R: rectum.

8

Cirrhosis is?

Cirrhosis is a complication of liver disease which involves loss of liver cells and irreversible scarring of the live

9

What can go wrong in the liver and gallbladder?

Liver: (abnormal function)
trauma
cancer/ metastisis
cirrhosis (nasty, white, shrunken)

Gall bladder (pain)
-gall stones/ cholecystitis
-cancer

10

Symptoms of issues with the gall bladder/ liver

-Pain (more due to GB, although liver can have pain)
-Jaundice
-Abn LFT's

11

a tangle of blood vessels in the liver

haemangeoma

12

How do ultrasounds pick us masses?

Sound waves. Blood flow reflects differently to fat/liver tissue and tumors can be identified.

13

Specific symptoms of gallstones, and how do you identify these?

Symptoms:
- RUQ pain
- nausea, fever
- intermittent (especially after eating fatty food).


Ultrasound used:
-bile in ultrasound = black
- so only gallstones are reflected and visible.
- thickened GB wall due to irritation/ inflammation
Gall stones are barely visible on CT!!

14

Potential issues with the spleen. How is this identified?

- trauma (ruptured sleen)
- cancer (spleen lymphoma)
- portal hypertension
- congenital eg) cysts

Viewed via CT scan:
- blood around the liver
- decreased haemoglobin

15

What are the two ways for free air to get into the gut? How is this viewed?

1) trauma
2) gut perforation

Straight to CT. Previously they would've have to had been on their side to see free air.

16

Issues of the stomach or Small bowel have symptoms of? Ways of investigating are?

-pain
- haematemesis
-vomiting
-weight loss

Invest via:
- abdo xray
- endoscopy
- US
- CT (if not sure about SI) (1st scan in eldery)
- barium study

17

polycystitis

cysts on kidneys

18

What does the small bowel look like? where is it on a scan

Looks feathery, whitesits in the middle of a picture

19

Symptoms of a small intestine obstruction

distention, vomiting, nausea, pain

20

Haustra coli and rugae as identifying things?

Haustra coli don't go all the way across. (Colon)
Rugae do (SI)

21

Symptoms of a colon/LI issue. FIrst thing to do is?

-altered bowel habits
- PR blood
- malaena

1st CT or CT colonoscopy

22

Faecal loading

shows extremely distended bowels

23

What can go wrong in the pancreas? what 'effect' can this cause?

pancreatitis
Cancer-primary (islet cell tumors or metastisis)
trauma
diabetes

'nutcracker effect' (duodenum compressed by SMA and aorta)

24

Two main reasons for pancreatic issues?

1) Alcohol
2) gallstones in common bile duct

25

What imaging is first done with kidney issues

US if young
CT if older