Miscellaneous Articular Disorders

Question 1

What is an uncommon, non-erosive deforming

reducible arthropathy that develops following Acute Rheumatic Fever (ARF)?

Answer 1

Jaccoud arthropathy

Question 2

T/F: Radiographically JaA is indistinguishable from SLE- arthropathy

Answer 2

True

Question 3

What are the key radiographic features of JaA?

Answer 3

non-erosive ulnar deviation of fingers at 2nd-5th MCPs

Question 4

What is a non- neoplastic condition resulting in nodular metaplastic proliferation of synovial lining of joints and rarely bursae resulting with multiple round osseous and cartilagenous intra-articular loose bodies?

Answer 4

Synovial Chondrometaplasia

Question 5

What is another name for Synovial Chondrometaplasia?

Answer 5

Reichel Syndrome

Question 6

What type of Synovial Chondrometaplasia contains loose bodies of similar or equal sizes radiographically?

Answer 6

Primary

Question 7

What type of Synovial Chondrometaplasia contains loose bodies of unequal sizes that may coalesce into a larger bodies?

Answer 7

Secondary

Question 8

What is the radiographic feature of Synovial Chondrometaplasia?

Answer 8

osteocartilagenous loose bodies that are laminated, multifaceted or round.

Question 9

What are the most common joints affected of Synovial Chondrometaplasia?

Answer 9

Knees>elbow>shoulder>hip

Question 10

What is a Rare benign villous (frond-like) and nodular proliferation of the synovium of the joints, bursa and tendon sheaths?

Answer 10

Pigmented Villonodular synovitis (PVNS)

Question 11

Where does PVNS mostly occur?

Answer 11

Knee

Question 12

What is also known as Giant cell tumour of the tendon sheath?

Answer 12

Tendon Sheath PVNS

Question 13

What are radiographic features of PVNS?

Answer 13

extrinsic osseous cortical erosions and soft tissue swelling

Question 14

What is a reactive process often related to some underlying pulmonary, cardiac or other pathology leading to the triad of painful periostitis, associated fingers/toes clubbing and arthritis?

Answer 14

Hypertrophic Osteoarthropathy (HOA)

Question 15

What clinical feature is often seen with HOA?

Answer 15

Digital clubbing

Question 16

What is digital clubbing mostly associated with?

Answer 16

paraneoplastic syndrome

Question 17

What is Pachydermoperiostosis also known as?

Answer 17

Primary HOA

Question 18

What presents as arthritis but w/o radiographic joint changes?

Answer 18

Secondary HOA

Question 19

What is the key radiographic characteristic of HOA?

Answer 19

solid periostitis involving distal extremities of diaphysis and metaphysis

Question 20

What is a non-infectious reactive inflammatory process involving symphysis pubis?

Answer 20

Osteitis Pubis

Question 21

What are the radiographic features of Osteitis Pubis?

Answer 21

para-symphysis osseous erosions and pseudo-widening of the symphysis pubis

Question 22

What is a reactive process involving adjacent ilium at the sacroiliac articulation?

Answer 22

Osteitis condensans ilii

Question 23

What gender does Osteitis condensans ilii mostly involve?

Answer 23

Females

Question 24

What is the key radiographic feature of osteitis condensing ilii?

Answer 24

triangular shaped osseous sclerosis of the iliac side of SIJ

Question 25

What is a separation of the osteochondral fragment from the corresponding part of the epiphysis usually involving from Sports Trauma?

Answer 25

Osteochondritis dissecans

Question 26

Where is Osteochondritis dissecans mostly affects?

Answer 26

Knee

Question 27

Where on the knee is osteochondritis dissecans mostly affects?

Answer 27

posterior-lateral surface of medial femoral condyle

Question 28

Where on the ankle is osteochondritis dissecans mostly affects?

Answer 28

medial dome of talus

Question 29

What is the most common hip abnormality at a young age?

Answer 29

Slipped Capital Femoral Epiphysis (SCFE)

Question 30

Where does the femoral hip usually slip in SCFE?

Answer 30

epiphyseal hip growth plate

Question 31

In what direction does the femoral head usually slip in SCFE?

Answer 31

posterior slippage (sometimes medial slippage)

Question 32

What is a major risk factor for SCFE?

Answer 32

obesity

Question 33

What is the clinical presentation of SCFE?

Answer 33

painful limp, externally rotated, and shortened extremity

Question 34

What is the best radiographic view for SCFE?

Answer 34

Frog-leg

Question 35

What is a key radiographic feature of SCFE?

Answer 35

Klein's line fails to intersect the epiphysis

Question 36

What condition is known as a local disturbance of growth of the proximal medial tibial epiphysis that results in the child presenting with leg bowing (tibia vara)?

Answer 36

Blount Disease

Question 37

What is the cause of Blount disease?

Answer 37

compressive forces on the medial tibial growth plate

Question 38

What condition consists of periosteal and endosteal thickening with a characteristic dripping or flowing candle wax appearance?

Answer 38

Melhoreostosis

Question 39

What is another name for Melhoreostosis?

Answer 39

Leri Disease

Question 40

What condition is a rare form of post-inflammatory (infectious) ligamentous laxity at C1-C2?

Answer 40

Grisel syndrome