Radiology Flashcards
Wrist
What is the ball catchers view good for?
To evaluate the To evaluate the tunnel for size and tunnel for size and space occupying space occupying lesions lesions Evaluates the Evaluates the borders of the borders of the tunnel tunnel
To evaluate the pisiform
Wrist and hand
What does ulnar deviation help in locating?
Stresses the scaphoid, helps detect subtle fractures Stresses the scaphoid, helps detect subtle fractures – Evaluates carpal motion, intercarpal jt. integrity Evaluates carpal motion, intercarpal jt. integrity
Wrist
What is the best view to evaluate the first metacarpal areas and lateral carpals?
Oblique view
Wrist
What must be visible to be considered a diagnostic hand series?
The entire hand
Wrist
Where does the scaphoid fat pad extend from?
Trapezium to radial styloid process
Wrist
Where is the most common places in the hand to find the sesamoid bones?
Metacarpophalangeal joints
Wrist
What is the only symptom producing accessory ossicles in the hand?
so styloidium
Wrist
What normal variants occurs commonly at both ends of the metacarpal shaft, especially the base of the second metacarpal
Cortical thickness of the metacarpals
Wrist
What is carpal coalition and were is it most commonly seen?
Lunate and triquetrum
Failure of segmentation between 2x bones of the wrist
Wrist
On PA writs view if the scaphoid is mildly rotated by improper position what may appear overlying the distal aspect of the scaphoid
Scaphoid ring
Elbow
What is the jones view goof for visualising
To assess the olecranon process in the ulna
Elbow
What is significant about the oblique view?
Radio ulnar cross over
Elbow
What overlaps of the AP view and cannot be distinguished from each other
The coronoid and olecranon fossa
Elbow
The anterior fat pad is anterior to what structure in the elbow?
Coronoid fossa
The posterior fat pad is only visualised of?
If the elbow is extended of there is inflammation in the
Shoulder
What is an AP internal rotation taken to visualise?
Profiles lesser tubercle medially tubercle medially
What’s an AP EXTERNAL rotation taken to visualise?
Lesser tubercle
Shoulder
What does crasheys view visualise
By obliquely positioning the patient, it offers visualization of the glenohumeral joint with NO bony overlap.
Shoulder
What is an uninvited apophysis?
Failure of a secondary growth centre to fuse with its parent bone
Shoulder
What is sprengels deformity
Scapula fails to descend
Inferior angle is 2-10cm higher than its normal position at T7
Usually unilateral
Associates with klippel Fiel
What view is a pseudotumor of proximal humerus seen on?
AP internal rotation
Shoulder
What can a deltoid tubercle appearing large be mistaken for?
Tumors
What is the space in mm seen in
A) acromioclavicular joint
B) coracoclavicular joint
C) Acromiohumeral joint
?
What is a good view for evaluation of scapula
Trans-scapula view
Y view
What is the name for the groove in the inferior surface of the medial aspect of the clavicle?
What is it for?
Rhomboid fossae
Insertion of the rhomboid ligament
Pressure from subclavian artery
Foot
What is the medial oblique view good for evaluating?
Tibiofibular Sydnesmosis
What view appears similar to AP ankle view? What is the difference?
Mortise view
Eliminates bony overlap in the joint space (lateral aspect of the joint space)
What is the dorsal plantar view good for?
Coronal anatomy of the foot
What view gives an axial view of the calcaneus?
Posterior tangential view (Harris beath)
What is a sinus Tarsi? What view is it sometimes seen on?
A tunnel within the subtalar joint. Seen on either
- Oblique ankle view
- Mr
What is the most common accessory ossicle seen on the foot?
Os trigonum- behind the talus
What should accessory ossicle be distinguished from?
- fractures
- soft tissue calcifications
What should a bipartite sesamoid not be so fused with?
Fracture
What is a talar break and what should it not be confused with?
Degenerative osteophcyte
Bony process on the dorsal aspect of the neck of the talus
What’s a problem that might arise from tarsal coalition?
Premature degenerative osteoarthritis of the tarsal joints
What is polydactyl
More than 5 fingers or toes
Knee
What degree of flexion must the knee be at on the lateral view?
45 degrees
What joint is best visualised on sunrise view?
Patello-femoral joint
Knee
Upright AP knee is use to evaluate what joint space width
Tibiofemoral joint space
If the posterior boarders of patella tendon are not well defined, this could suggest what?
Bursitis?
Knee
The supra patella bursae may become apparent if what?
Inflammed Posterior quadriceps tendon
Knee
What is ludloff spot? Is it a true anatomical structure? What film is it visible from
Not a true anatomical structure
Appears due to less cortical bone ring transversed anteriorly or posteriorly, cortical edge of tunnel and physis
Only viewed on lateral view
What is the most common corner to get bipartite of multipartite patella in? Is it smooth or jagged?
Superolateral corner
Bipartite 80% of the time
What is fabella and what is its clinical significance?
None
Sesamoid bone that lies in the lateral head of the gastroc
