Arthritis And Random Msk

Front 1

lumpy bumpy STS + well corticated erosive disease

Back 1

gout

Front 2

another name for sausage digit STS

Back 2

dactylitis

Front 3

why is there osteopenia in certain arthriditis

Back 3

hyperemia in region of affected joints, the activates osteoclasts and causes demineralization

Front 4

appearance STS at joints on XR

Back 4

looks like increased density on XR if viewed en face

Front 5

t or f: ankylosis is associated with RA

Back 5

true, often in the carpus

Front 6

t or f: new bone formation, osteophyte formation etc is assoc with RA

Back 6

false

Front 7

felty syndrome

Back 7

RA
splenomegaly
leukopenia

Front 8

classic hallmarks of RA (in general)

Back 8

aggressive marginal erosions
no bone production
b/l symmetric

Front 9

classic findings of RA in hands/wrists

Back 9

proximal distribution
pancarpal joint space loss and erosions
swan neck and boutonniere deformities
ulnar styloid, pisotriquetral joints are affected early
ankylosis in the wrist

Front 10

arthritis mutilans

Back 10

lunar dripf of digits and lunar translocation of the carpus

Front 11

mr findings of RA

Back 11

synovial hypertrophy
erosions (check T1 for low signal, high on T2)
surrounding edema
loss of hyaline cartilage

Front 12

RA findings in the feet

Back 12

MTP disease predominates
can have ankylosis of the talocalcaeonavicular joints
distended retrocalcaenal bursa and erosive disease

Front 13

appearance of RA in the knee

Back 13

pancompartmental joint space loss, minimal erosions

Front 14

RA findings in hips

Back 14

axial migration
acetabular protrusion (medial deviation beyond the iioischial line)

Front 15

how to differentiate OA from RA in the knee

Back 15

OA - would expect subchondral sclerosis and osteophyte formation

Front 16

radiographic hallmarks of psoriatic arthritis

Back 16

fusiform STS
maintained bone mineralizATION
dramatic joint space narrowing
bone proliferation
pencil in cup erosions
b/l asymmetric disease

Front 17

is pencil in cup specific for psoriatic arthritis

Back 17

no, can be seen in reactive arthritis
can also be seen in RA (look at whole picture)

Front 18

psoriatic arthritis in teh hands and feet

Back 18

IP joints, asymmetric
acro-osteolysis
calcanelal erosions, periostitis
pancarpal

Front 19

classic findings of erosive OA

Back 19

asymmetrical ST around joint
nml mineralization
central erosions (seagull)
OA findings
asymmetric joint space loss

Front 20

can EOA have ankylosis

Back 20

yes

Front 21

how to differentiate psoriatic arthritis from reactive arthritis

Back 21

indistinguishable, however reiter's is more common in LE than UE

Front 22

XR findings of reactive arthritis

Back 22

diffuse STS
univform joint space loss
aggressive marginal erosions
bone production
b/l asymmetrical
LE involvement

Front 23

reactive arthritis in the feet

Back 23

IP and MTP joints
erosions wiht repair
periostitis along diaphyses
enthesopathies, fluffy in appearance
plantar and posterior erosions

Front 24

SI joint appearance in ank spond

Back 24

b/l symmetric, similar to crohn's disease
erosions in ilac side
sclerosis, ankylosis

Front 25

how to differentiate osteitis condensans from sacroiliitis

Back 25

in osteitis condensans, the iliac side is usually affected, but can extend into the sacrum
no erosive changes or joint space narrowing

Front 26

which portion of the spine is involved first i nank spond

Back 26

ascends from lumbar to cervical

Front 27

what is the shiny corner sign
when seen

Back 27

increased sclerosis in teh anterior superior and inferior margins of the vertebral body
the vertebral body is squared off and lacks the normal anterior concavity
classic for ank spond

Front 28

normal shape of a vertebral body

Back 28

should have a mild concavity anteriorly
this disappears in ank spond

Front 29

how to differentiate DISH from ank spond

Back 29

in ank spond the anteiror syndesmophytes are thin, no horizontal component
DISH: bulky paravertebral ossification

Front 30

how does the appearance of JRA compare to adults RA

Back 30

may not have any significant joint space narrowing especially if dz is monoarticular
no erosions
ankylosis common
MCP joints usually spared in JRA

Front 31

findings of multicentric reticulohystiocytosis

Back 31

DIP erosions + acroosteolysis
nodularity of the skin

Front 32

findings associated with muskuloskeletal amyloidosis

Back 32

destructive spondyloarthropathy
lytic areas
endosteal scalloping, erosions from ST mass
similar appearance to neuropathic joint

Front 33

who is at risk for amyloidosis

Back 33

assoc with chronic disease

Front 34

where in the skeletal system does amyloid deposit

Back 34

bon e
tenosynovium
IV disk
cartilge
capsule
ligament
muscle

Front 35

\what is a reverse segond fx

Back 35

fx of medial tibia, seen on AP knee
suggests PCL injry

Front 36

arcuate sign

Back 36

thin avulsion fragment arising from fibular styloid = avulsion by posterolateral ligament attaching to that side

Front 37

findings of PCL avulsion

Back 37

bone fragment in the posterior and midline position seen on lateral knee xr

Front 38

which is more common PCL or ACL avulsion

Back 38

PCL

Front 39

typical adult appearance of sequela of JIA

Back 39

carpal ankylosis typical (ankylosis morme common in JRA/JIA than adult)
normal MCP (not a feature of adult RA)
also, look for gracile bones (= chronic)

Front 40

XR appeaerance of myelofibrosis

Back 40

increased density in bone esp in axial skeleton and proximal in appendicular skeleton

Front 41

most common location of os acromiale

Back 41

lucent line between mesoacromion and metaacromion
there is a sclerotic edge, indicating chronicity

Front 42

how to differentiate acute from chronic ank spond

Back 42

look for signal abnormality on T2/STIR (high sig
), if present then it's acute

Front 43

which portions of hte SI joints are involved in DISJJ ?
ank spon?

Back 43

DISH - superior, non synovial portion of joint is involved
in ank spon, the inferior portion is involved

Front 44

normal relationship between the anterior arch of C1 and C2 on lat XR

Back 44

anterior arch of C1 should be opposite the odontoid
if it is seen lower than this, suspect atlantoaxial impaction

Front 45

carrot stick fx?

Back 45

idk!

Front 46

what is a sourcil

Back 46

idk

Front 47

what is one of hte first tendons to be affected in RA

Back 47

extensor carpi ulnaris

Front 48

what to think of when you see differential site of skeletal maturation in same pt

Back 48

this i slikely due to hyperemia causeing maturation
may be seen in JRA

Front 49

appearance of acute hydroxyapatite deposition disease on MR

Back 49

low signal = calcifications within a tendon, with surrrounding reactive edema and enhancement post-contrast

Front 50

msk manifestations of sle

Back 50

tenosynovitis esp of hand flexors
they do not usually present with true arthritis or synovitis

Front 51

where is dequervain's tenosynovitis

Back 51

in extnsor pillicis brevis and abductor pollicis longus

Front 52

appearance of pyrophosphate arthropathy in knee

Back 52

patellofemoral disease dominates
mixed erosions and osteophyte s
chondrocalcinosis
subchondral cysts (may be large)