Normal Rad Anatomy Anomalies/Variants: Upper Extremity File

Question 1

occasionally be performed in

cases of shoulder dislocation or other regional trauma

Answer 1

Y-scapula view.

Question 2

In internal humeral rotation radiographs (esp. chest
x-ray) overimposition of humeral head should not be confused with bone
lesion

Answer 2

Humeral pseudotumour

Question 3

unfused secondary centreof acromion ossification. Can be symptomatic
espwith repeated trauma

Answer 3

Osacromiale

Question 4

Fat pad usually indicate what?

Answer 4

a fracture

Question 5

Importance of anterior humeral line is to evaluate for common
paediatric fracture, known as ______ of distal
humerus.

Answer 5

supracondylar fracture

Question 6

If Ant and Post fat pads are

elevated in an adult elbow that indicates what?

Answer 6

-indicates intra-articular effusion of any abnormal source

Question 7

The CRITOE ossification centers stands for what?

Answer 7

C-capitellum
R-radial head
I-internal condyle
T-trochlea
O-olecranon
E-external condyle

Question 8

When does each part of CRITOE ossify?

Answer 8

(1-3-5-7-9-11)

Question 9

What joint does CRITOE take place?

Answer 9

Elbow

Question 10

A claw like structure that appears on the middle diaphysis of the humerus

Answer 10

Supracondylar process

Question 11

What can put tension on the ligamentum struther’s

Answer 11

Supracondylar process

Question 12

What happens as a result of the supracondylar process pulling on the ligamentum struther’s

Answer 12

Compression on the median nerve (carpal tunnel syndrome like)

Compression of the brachial artery

Question 13

Can be congenital or 2ndary to fracture

or other pathology

Answer 13

Radio-ulnar synostosis

Question 14

Congenital absence of the limb

Answer 14

Phacomelia

Question 15

Extra phalanges

Answer 15

Polydactyly

Question 16

Fusion of the digits via the skin

Answer 16

synphalangism

Question 17

Fusion of phalanges at the bone

Answer 17

Syndactyly

Question 18

Complex syndactyly is a result from what

Answer 18

apertsyndrome

Question 19

accessory ossicle to ulnar styloid, triquetrum and sometimes

lunate.

Answer 19

Os triangulare

Question 20

persistant radial styloid

Answer 20

Os radiostyloidum

Question 21

unfused failed ossification centreof the
Hook of the Hamate bone. Smooth and well-corticated margin
helps with DDx of a Hook of the Hamate fracture

Answer 21

OsHamuliproprium

Question 22

Essential view for carpal navicular or scaphoid bone visialization

Answer 22

Ulnar deviation view of the wrist

Question 23

Normal Ulnar Radial

Relationship should be what at the the distal end?

Answer 23

2.3-4.2 mm

Question 24

The distal ulna is shorter than the distal radial articular surface (>2 mm)

Answer 24

Negative Variance

Question 25

Carpal angle should be what?

Answer 25

130-137 degree