Conditions pictures part 2 Flashcards
What condition is this? Describe.
Rheumaoid Arthritis
‘Whittled lamina’
Sclerosis of C2-C3 facets
- due to a change in forces
What condition is this? Describe.
RA
Extensive destruction of femoral heads bilaterally
Whittling of femoral head
Subchondral scerlosis
Protrusio acetabuli
Pseudo cysts
Widespread osteopaenia
What condition is this? Describe
Pseudo cysts
Subchondral sclerosis
Juxta articular osteopaenia (possibly widespread)
Enthesopathy of the ACL (whittled and calcified)
What condition is this?
RA
What is this condition?
RA - arthritis mutilans
What is this condition
Juvenile idiopathic arthritis
- Swelling around DIPS
- Juxta articular osteopaenia
- Cortical thinning
- Laminated periosteal response (can see a small line between the periosteal response and the cortex in the middle image on the ulnar aspect of the proximal phalanx of the 3rd digit
What condition is this? Describe
DISH
- Undulating contour ossifications
- Preservation of disc space
- ‘Candle flame’ osteophytes (maybe differentiate from OA by disc space preservation as osteophytes in OA are due to traction or increased shearing)
What condition this is
DISH
- flowing hyperostosis
- undulating contour ossifications over numerous levels (has to be over 4+ levels to be diagnostic)
What condition is this
DISH
- dripped candle wax appearance
What condition is this?
DISH
- Tendon ‘whiskering’ (lig/tendon ossification)
(in this case, calcification of the achilles)
What is this condition?
Charcots joint / neurotrophic arthropathy
What is this condition?
Charcots joint/ neurotrophic arthropathy
What condition is this?
DISH
What is this condition? What stage is it in? What are the signs of this stage?
AS
Stage 1
- Bilateral and symmetric
- Iliac side more extensively involved
- Involves lower two thirds of joint.
- Osteopaenia of the sacrum
What is this condition? What stage is it? What can we see that indicates what this condition is?
AS
Stage 2
Articular erosions (rosary beads)
Diminished joint space
Loss of articular cortex definition (Pseudowidening)
Patchy reactive sclerosis
Subchondral osteoporosis
What is this condition? What hallmark signs can we see in this image?
AS
Stage 3
Star sign - ossification of superior sacroiliac ligaments
Ghost sign - visualisation of articular cortex through ankylosed joint
Dagger sign - ossification of supraspinous ligs
Generalised osteopoenia
What can we see in this image? What condition does it indicate?
AS
Rommanus lesions (black arrows)
Shiny corner sign - sclerosis in reaction to rommanus lesion (white arrow)
We can also see osteopoenia
What condition is this?
AS
Uniform loss of joint space
Axial migration of femoral head
Protrusio acetabuli
Ankylosis of the joint
Erosion, periostitis at trochanters and adj ischial tuberosity caused by enthesopathy
Subchondral cysts
What condition is this? Why?
AS
Dagger sign
Trolley tracks
Marginal syndesmophytes
Ghost sign
Star sign
Widespread osteopoenia
What is this condition?
DISH
- difficult to differentiate from AS, however DISH has paramarginal syndesmophytes in which the ALL is being ossified. We will often see a thin, radiolucent line between the vertebral body and the syndesmophyte if it is the ALL that is being ossified, where as in AS, it is the outer aspect of the annulus that is being ossified
What is this condition? What is this hallmark sign called and what causes it?
AS
Bamboo spine - multiple marginal syndesmophytes
What is this condition
AS
What is this condition? What do we see?
PsA
At joint margins (fluffy Periosteal new bone formation) (mouse ears)
Whittled articular end of phalanx.
What is this condition? What do we see?
PsA
At joint margins (fluffy Periosteal new bone formation) (mouse ears)
Progresses to whittled articular end of phalanx.
Whittled end erodes into adjacent cortical surface giving pencil and cup deformity.
What is this condition? What do we see?
PsA
Joint margins (fluffy periosteal new bone formation) (mouse ears)
What is this condition? What do we see?
PsA
Non-marginal syndesmophytes.
What is this condition? What is the difference between the 2 images?
PsA
Non-marginal syndesmophytes.
Right: Complete: attached to mid body of two contiguous vertebrae.
Left: Incomplete: Comma shaped. (teardrop)
What is this? what condition is it found in?
PsA
Non-marginal syndesmophyte
Floating: Unattached ossification bridging disc space.
What is this? What condition is it found in?
PsA
Non-marginal syndesmophyte
Bagpipe: bulkier base attached to mid body
What do the arrows indicate? What condition is this?
Cortical erosion, sclerosis, Periosteal “Whiskering” extending from bone into ligament or tendon.
AS
