Imaging SBAs Unit 2

Question 1

Patella baja vs alta risks

Answer 1

Baja associated with quads tendon rupture
Alta associated with patellar tendon rupture

Question 2

RA typically spares

Answer 2

SI joints

Question 3

Mysitis ossificans can have

Answer 3

Periosteal reaction

Question 4

High t2 signal in medial meniscus only breaching articular surface on one slice

Answer 4

Intrasubstance degeneration only

Question 5

Old female, purely cortical lucencies

Answer 5

Aggressive osteoporosis

Question 6

Tibialis posterior tendon rupture associated with

Answer 6

Spring ligament tearing and abnormal sinus tarsi

Question 7

Poorly defined lucency with no periosteal reaction after minor trauma

Answer 7

Pseudolucency

Question 8

Good response to bony mets on bone scan

Answer 8

Increased intensity of lesions with absence of new lesions

Question 9

Osteoma vs osteoblastoma

Answer 9

Osteoblastoma pain is not usually relieved by aspirin

Question 10

Young adult, painful scoliosis, expansile soap bubble lesion in posterior elements

Answer 10

Osteoblastoma

Question 11

Scheuermann’s disease can cause

Answer 11

Vertebral plana

Question 12

Hair on end periosteal reaction

Answer 12

Benign

Question 13

Low T1, High T2 in upper outer quadrant of patella

Answer 13

Normal variant

Question 14

Hurlers spine

Answer 14

Posterior scalloping

Question 15

Causes of anterior spine scaloping

Answer 15

Downs,
TB,
Aortic aneurysm,
Chronic leukaemia

Question 16

Staging of AVN

Answer 16

Ficat staging
1: normal or slightly increased or deminished density
2: mixed osteopenia and sclerosis
3: subchondral collapse or crescent sign
4: articular collapse
5: progression to degenerative joint disease

Question 17

Fragmentation anterior to tibial tubercle, enlargement of patellar tendon with increased T1 and T2 distally

Answer 17

Osgood-Schlatter

Question 18

Dense metaphyseal bands caused by

Answer 18

Normal variant,
Treated leukaemia,
Rickets
Heavy metal
Scurvy

Question 19

Numerous small areas of sclerosis scattered throughout the skeleton

Answer 19

Osteopoikilosis

Question 20

Bamboo spine, disc calcification, skin pigmentation

Answer 20

Alkaproteinuria

Question 21

Commonest cause of neuropathic arthritis in upper limbs

Answer 21

Syringomyelia

Question 22

Acromegaly spinal features

Answer 22

Increased vertebral height,
Posterior scalloping,
DISH,
Elongation and widening of vertebral bodies

Question 23

MRI features of gout

Answer 23

Iso T1, Low T2

Question 24

Common locations for bone resorption in hyperparathyroidism

Answer 24

SI joint,
Middle phalanx,
Distal phalanx,
Distal clavicles

Question 25

Avulsion injury of deltoid ligament caused by

Answer 25

Eversion injury

Question 26

Hangman’s fracture

Answer 26

Posterior arch fracture of C2 secondary to hyperextension injury

Question 27

Secondary chondrosarcomas usually arise from

Answer 27

Enchondroma or osteochondroma

Question 28

Paget’s bony appearance in child with superscan

Answer 28

Hyperphosphatasia

Question 29

Medial leg pain in new runner, diffuse uptake in posteriomedial tibia on bone scan

Answer 29

Shin splints (medial tibial stress syndromE)

Question 30

Pagets vs mets in bone scan

Answer 30

Vertebral mets are unlikely to involve posterior elements

Question 31

Multiple expansile bony lesions with soft tissue masses

Answer 31

Mazabraud syndrome (polyostotic fibrous dysplasia associated with soft tissue mycomas)

Question 32

Osteomyelitis appearance on MRI

Answer 32

Confluent low signal marrow change on T1

Question 33

Common locations of osteomyelitis of foot

Answer 33

Distal to TMJs, Calcaneus, Malleoli

Question 34

US appearances of tennis elbow

Answer 34

Intratendinous thickening with calcification and diffuse heterogeneity of the common extensor tendon