Abdominal Radiology

Question 1

Is this x-ray noral or abnormal?

Answer 1

normal

Question 2

Is this normal or abnormal?

Identify the labelled structures:

Answer 2

NORMAL

1 11th rib.
2 Vertebral body (TH 12).
3 Gas in stomach.
4 Gas in colon (splenic flexure).
5 Gas in transverse colon.
6 Gas in sigmoid.
7 Sacrum.
8 Sacroiliac joint.
9 Femoral head.
10 Gas in cecum
11 Iliac crest.
12 Gas in colon (hepatic flexure).
13 Psoas margin.

Question 3

What abnormality does this show?

Answer 3

adynamic ileus (localized)

Question 4

What abnormality does this show?

Answer 4

adynamic ileum (generalized)

Question 5

What abnormality does this show?

Answer 5

mechanical small bowel obstruction (supine view)

Question 6

What abnormality does this show?

Answer 6

mechanical small bowel obstruction (supine view)

Question 7

What abnormality does this show?

Answer 7

small bowel obstruction (pinpointing location)

Question 8

What abnormality does this show?

Answer 8

gallstone ileus

(in last part of small bowel)

Question 9

What abnormality does this show?

Answer 9

mesenteric ischemia

Question 10

What abnormality does this show?

Answer 10

Superior Mesenteric Artery Occlusion (clot)

mesenteric ischemia

Question 11

What abnormality does this show?

Answer 11

intestinal pneumatosis

mesenteric ischemia

Question 12

What abnormality does this show?

Answer 12

portal venous air

mesenteric ischemia

Question 13

What abnormality does this show?

Answer 13

sigmoid volvulus

Question 14

What abnormality does this “bird beak sign” show?

Answer 14

sigmoid volvulus

Question 15

What abnormality is indicated by the arrows?

Answer 15

cecal volvulus

Question 16

What abnormality does this show?

Answer 16

extraluminal air, free air

(beneath diaphragm)

Question 17

What abnormality does this “RIGLER’S SIGN” show?

Answer 17

extraluminal (pneumoperitoneum) air

Question 18

What abnormality does this “falciform ligament sign” or “football sign” show?

Answer 18

extraluminal (pneumoperitoneum) air

Question 19

What abnormality does this show?

Answer 19

Pneumoperitoneum free air

Arrowheads point to free air.

Arrows points to collection of fluid around bowel loops.

Black arrows point to pericolonic fascial infiltration consistent with abscess.

Question 20

What abnormality does this show?

Answer 20

free air in retroperitoneum

Question 21

What abnormality does this show?

Answer 21

calcifications

on rim of Abnormal Aortic Anurism (AAA)

Question 22

What abnormality does this show?

Answer 22

renal stone

Question 23

What abnormality does this show?

Answer 23

appendicolith

(calcification in appendix)

Question 24

What type of imaging was used?

Answer 24

CT computerized tomography

(view from feet-up)

Question 25

What does this CT scan indicate?

Answer 25

appendicitis

Question 26

What abnormality does this show?

Answer 26

Appendiceal abscess *•Air in the fluid collection, appendicolith (skinny arrow) •Thickened wall of terminal ilium (big arrow)*

Question 27

What abnormality does this show? note: appendix is normal; RLQ pain present

Answer 27

Chron's Disease

Question 28

What abnormality does this show?

Answer 28

pancreatic pseudocyst

Question 29

What abnormality does this show?

Answer 29

Pancreatic Mass

Question 30

what is a PET-CT used for?

Answer 30

metastatic work-ups