Radiology Live Unit 2

Question 1

Most sensitive modality for early calcific tendinopathy

Answer 1

Ultrasound

Question 2

Complete discoid lateral meniscus MRI

Answer 2

Meniscal width >15mm on coronal

Question 3

Pathological vs benign fracture lines

Answer 3

Benign is straight, pathological often irregular

Question 4

Close approximation of adjacent spinous processes with sclerosis and flattening of opposing surfaces

Answer 4

Baastrup disease

Question 5

FDG uptake in Giant cell tumour

Answer 5

Moderate, SUV max 4-7

Question 6

Multiple areas of increased bone uptake, young pt with chronic bone pain

Answer 6

Polyostotic fibrous dysplasia

Question 7

Immune mediated necrotising myopathy vs inclusion body myositis

Answer 7

Diffuse, symmetric muscle oedema vs asymmetric

Question 8

Diminished ankle reflex - nerve affected

Answer 8

S1

Question 9

Weak great toe extension nerve affected

Answer 9

L5

Question 10

Vertebral bodies in Morquio

Answer 10

Anterior beaking and platyspondyly

Question 11

Tennis racket appearance

Answer 11

Straight septa crossing the lesion, typical of odontogenic myxoma

Question 12

Commonest accessory ossicle adjacent to navicular tuberosity

Answer 12

Os tibiale externum

Question 13

OPG shows severe periodontal bone loss and missing teeth, next step

Answer 13

CT

Question 14

Useful additional measurement to TT-TG distance in determining surgical need

Answer 14

Lateral trochlear inclination angle

Question 15

Diagnostic criteria for Scheuermann disease

Answer 15

Anterior wedging of >5 degrees in at least 3 adjacent vertebrae

Question 16

Widening and irregularity of metaphyseal regions

Answer 16

Diaphyseal aclasia

Question 17

Increased TT-TG distance associated with

Answer 17

Lateral patellar maltracking

Question 18

New osteoporosis diagnosis, next step

Answer 18

X-ray to rule out fractures

Question 19

Enchondroma MRI appearance

Answer 19

Lobulated high T2 lesions with foci of low signal intensity

Question 20

Chalkstick fracture typical appearance

Answer 20

Transverse fracture line through all 3 vertebral collumns

Question 21

Squared off iliac wings

Answer 21

Achondroplasia

Question 22

Honda sign, not sacral insufficiency fractures

Answer 22

Tarlov cysts

Question 23

Fluid collection in cellulitis on CT

Answer 23

-10 to 20HU

Question 24

metastatic lesions vs stress fractures on MRI spine

Answer 24

Mets can involve posterior elements

Question 25

Commonest primaries to metastasize to spine

Answer 25

Prostate, breast, lung, renal, thyroid

Question 26

Prognosis of Kohler disease

Answer 26

Spontaneous resolution

Question 27

Most reliable indicator of haemophillic arthropathy severity

Answer 27

Degree of joint space narrowing

Question 28

Pilomatricoma vs sebaceous cyst

Answer 28

Internal calcifications