Radiology

Question 0

SFA: gas in the fetal aorta

Answer 0

Robert’s sign

Question 1

Overlapping of fetal skull bones

Answer 1

Spalding sign

Indicative of IUFD

Question 2

Corkscrew appearance

Answer 2

Diffused esophageal spasm

Question 3

Double bubble sign

Answer 3

Duodenal atresia

Question 4

Soap bubble sign

Answer 4

Meconium ileus

Neuhauser’s sign

Question 5

Pneumointestinalis

Answer 5

NEC

Question 6

Double railroad track sign

Answer 6

Congenital pyloric stenosis

Question 7

String sign

Answer 7

Pyloric stenosis

Chron’s disease

Question 8

Ultrasound findings consistent with acute appendicitis

Answer 8

1) Diameter >6mm
2) Non-compressibility of the appendix
3) Presence of a complex mass

Question 9

Egg on the side

Answer 9

Transposition of the great arteries

Question 10

Snowman or figure of 8

Answer 10

TAPVR

Question 11

Boot shaped heart

Answer 11

TOF

Question 12

Eggshell pattern on SFA

Answer 12

Meconium ileus

Also presents with microcolon

Question 13

Coiled spring appearance on SFA

Answer 13

Intussusception

Currant jelly stools
Sausage-shaped mass

Question 14

Colon cut-off sign

Answer 14

Pancreatitis

Question 15

Bent inner tube sign

Answer 15

Sigmoid volvulus

Question 16

Omega sign

Answer 16

Sigmoid volvulus

Question 17

Coffee bean sign

Answer 17

Cecal volvulus

Question 18

Cotoon-candy lung

Answer 18

Panacinar emphysema

Question 19

Popcorn lung

Answer 19

Hamartoma

Question 20

Rib notching

Answer 20

Coarctation of the aorta

Due to presence of collateral vessels

Question 21

Water bottle sign

Answer 21

Pericardial effusion

400-500 mL

Question 23

CXR: Coin lesion

Answer 23

Hamartoma

Question 24

Mottling of the lungs

Answer 24

Bagasse

Sugar-cane workers

Question 25

Punched out lesions/lytic lesions

Answer 25

Multiple myeloma

Question 26

Angiogram: puff of smoke

Answer 26

Moyamoya disease

Question 27

Milkman’s fracture

Answer 27

Osteomalacia

Vitamin D deficiency in adults

Question 28

Fracture associated with silver/dinner fork deformity

Answer 28

Colle’s fracture

Outstretched hand
Distal radius with posterior dislocation

Question 29

Night stick fracture

Answer 29

Ulnar fracture

Question 30

Bamboo spine

Answer 30

Ankylosing spondylitis

Question 31

Sunburst appearance

Answer 31

Osteosarcoma

Question 32

Onion skinning appearance of bone

Answer 32

Ewing sarcoma

Blue small round cell
PNET

Question 33

Codman’s triangle

Answer 33

Osteosarcoma

Question 34

Champaign glass appearance

Answer 34

Achondroplasia

Question 35

Dawson’s fingers

Answer 35

Multiple sclerosis

Perivascular demyelination

Question 36

Biconvex lens bleeding

Answer 36

Epidural hemorrhage

Ruptured meningeal artery
Lucid interval

Question 37

Crescentp-shaped bleed

Answer 37

Subdural

Emissary vessels/bridging veins

Question 38

Boxcar ventricles

Answer 38

Huntington’s disease

Atrophy of the caudate nucleus

Question 39

Thumbprint sign

Answer 39

Epiglottitis

Causative agent: H. influenza
Cherry red appearance of the epiglottis

Question 40

Porcelain gallbladder

Answer 40

Calcium based incrustation of the gallbladder

Indicative of a malignancy or calcification

Question 41

Steeple sign

Answer 41

Croup (Laryngotracheobronchitis)

Etiologic agent: parainfluenza

Question 42

Pneumatoceles

Answer 42

Staph. aureus

Question 52

Honeycomb lung

Answer 52

Bronchiectasis

Prominent cystic spaces