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DI Conditions by Body Parts (FINGER (Hyperparathyroidism subperiosteal…
DI Conditions by Body Parts
SKULL
Acromegaly
lantern jaw (prognathism), sella turcica, enlarged frontal sinuses
Hyperparathyroidism
salt & pepper
Osteomyelitis Non-Suppurative
Pott's Puffy Tumour of TB
Sickle Cell Anaemia
granular skull, widespread diploic space
Beta Thalassemia Major
hair-on-end skull
CERVICAL
Ankylosing Spondylitis
facet erosion, ankylosis, anterolisthesis C2-4 causing stair stepping from loss of disc height
Reiter's Dx
instability C1-2
Diffused Idiopathic Skeletal Hyperostosis DISH
flowing hyperostosis at 4 continuous VB levels, calcification, dysphagia
LUMBOPELVIC
Osteomalacia
calcium salts not deposited, vitamin D
Hypothyroidism
wormian bones
Hyperparathyroidism
widening joint space
Osteomyelitis Non-Suppurative
Weaver's Bottom subgluteal bursitis
DJD
Waldenstrom sign, large subchondral cysts, buttressing, tilt deformity, soft tissue swelling
Osteitis Condensans Ilii Oci
Bilateral symmetric triangular sclerosis of the ilium
Osteitis Pubis
Bilateral symmetric involvement, sclerosis, joint margin irregularity, widened pubic joint space
Progressive Systemic Sclerosis / Scleroderma
bilateral symmetric triangular sclerosis of ilium
SACRUM SIJ
Ankylosing Spondylitis
sclerosis in lower 2/3 of iliac, bilateral symmetrical sacroiliitis, Rosary bead sign, ghost joint, Star sign upper SIJ
Psoriatic Arthritis
bilateral asymmetric, ankylosis
Reiter's Dx
bilateral asymmetric
Osteomyelitis
unilateral sacroiliitis
KNEE
Osgood-Schlatter's
tibial tuberosity fragmented
Osteochondritis Dissecans
loose body, articular surface irregularity, effusion
Spontaneous Osteonecrosis of Knee SONK
Progressive Systemic Sclerosis / Scleroderma
flocculant calcification
Neurotrophic Arthropathy
Charcot's joint, bag of bones
ANKLE FOOT
Acromegaly
enlarged heel pad thickness
Freiberg's
2nd - 5th MTP sclerotic head
Kholer's
talus, navicular flatten
Server's Dx
calcaneal sclerotic fragmented
Psoriatic Arthritis
big toe, distal tufts, achilles erosion
Reiter's Dx
fluffy periostitis, lanois deformity (toes deviation), lover's heel, sexual history
UREA
Gout
hyperuricaemia, tophi, overhanging margin, erosion, spotty carpals
TUMOUR ABSCESS
Hyperparathyroidism
Brown tumour
PVNS
giant cell tumour
Osteomyelitis
paraspinal line abscess, epidural abscess
Osteomyelitis Non-Suppurative Tuberculous Spondylitis
Psoas Cold Abscess
Haemophilia
haemophilic pseudotumour
Hypertrophic Osteoarthropathy HOA
bronchogenic carcinoma, tumour
GI
Sarcoid
hepatosplenomegaly (chest x-ray), cystic lucency, potato nodes
Acute Childhood Leukaemia
splenomegaly
Adult Leukaemia
splenomegaly
Osteomyelitis
visceral infection
Sickle Cell Anaemia
visceral changes (gall stones, bowel infarction, autosplenectomy)
Beta Thalassemia Major
organomegaly, cardiomegaly
Septic Arthritis
bone destruction
Ankylosing Spondylitis
Enteropathic Arthropathy
Ulcerative colitis, Crohn's dx
ELBOW
RA
Sail sign (anterior fat pad displaced posteriorly)
Synovial osteochondrometaplasia
floccular calcification
WRIST
CPPD
Terry Thomas sign (widening), TFCC calcification
RA
Terry Thomas sign, Spotty carpal, loss of joint space
HAND
Thyroid Acropachy
Rickets
paint brush, vitamin D
Hypothyroidism
delayed skeletal maturation
Osteomyelitis Non-Suppurative Tuberculous Dactylitis
tubular bones
Beta Thalassemia Major
honeycomb trabeculae
Kienbock's Dx
lunate AVN, -ve ulnar variance
FEMOROACETABULAR
Hypothyroidism
fragmented epiphysis
Pigmented VilloNodular Synovitis
PVNS Apple Core Deformity
Osteoporosis
enlarged Ward's Triangle
Osteomalacia
protrusio acetabuli
Ankylosing Spondylitis
protrusio acetabuli
Septic Arthritis
capsular distension
Osteomyelitis Suppurative
sequestrum, involucrum, fat plane displacement, gas in bones, bone destruction
Legg-Calve-Perthes
capsular distention, joint space widening, flatten femoral head, epiphysis undergrowth, lucent crescent sign
Osteochondritis Dissecans
joint mouse
Sickle Cell Anaemia
femoral head osteonecrosis
THORACIC
Hypothyroidism
Gibbus deformity
Hyperparathyroidism
Rugger Jersey spine
Sarcoid
potato nodes
Scheuermann's Dx
irregular endplates T7-12, thoracic kyphosis at least 3 segments, schmorl's nodes, anterior wedging VB, thickened ALL
Ankylosing Spondylitis
carrot stick fracture at lower CT spine, Andersson lesion with pseudoarthrosis at fracture site
VASCULAR
Hyperparathyroidism
Monckeberg's arteriosclerosis (web-like soft tissue)
Diabetes Mellitus
Monckeberg's arteriosclerosis
Haemophilia
clotting deficiency, haemorrhage, haemarthrosis
Hypertrophic Osteoarthropathy
HOA heart, lungs, bronchogenic carcinoma
LONG BONES
Osteoporosis
pencil thin cortex, dark medulla, stress trabeculae, vertical striation, insufficiency fractures
Osteomalacia
enlarged Ward's Triangle, trabecular, osteopenia, basilar invagination, bowing deformities
Rickets
bowing deformities, paint brush metaphysis
Sickle Cell Anaemia
Erlenmeyer Flask Deformity, undertubulation of bone
Beta Thalassemia Major
Erlenmeyer Flask Deformity, undertubulation of bone
Acute Childhood Leukaemia
lucent metaphysial bands, periostitis, lytic lesions, granulocyte sarcoma
DENTURE
Osteomyelitis
dental procedure infection
FINGER
Hyperparathyroidism
subperiosteal resorption in DIP
Sarcoid
lace-like tufts
Acromegaly
turf-like tufts
Sickle Cell Anaemia
growth disturbance with shortening of phalanx, periostitis
Psoriatic Arthritis
nail changes in DIP PIP, MCP spared, sausage digits, 3 joint single digit, mouse ears, pencil in cup, arthritis mutilans, marginal erosions, whittling of phalanx
Erosive Arthritis
gull wings sign
DJD
non-uniform loss of joint space, osteophytes, subchondral sclerosis / cysts, intra-articular loose bodies, juxtaartcular osteoporosis
RA
rat bite erosions, subperiosteal resorption, swan neck deformity, Boutonneire deformity
Systemic Lupus Erythematosus
Reversible ulnar deviation, boutonniere, swan neck deformities; Generalised osteoporosis
Progressive Systemic Sclerosis / Scleroderma
tuft resorption
Hypertrophic Osteoarthropathy
HOA triad Digital Clubbing, systemic arthritis, periostitis
DJD
Heberden's node (DIP), Bouchard's node (PIP)
Thumb Basilar Joint Arthritis
OA in 1st MCP
RA
ulnar deviation, loss of joint space, juxtaarticular hyperaemia
LUMBAR
Osteomyelitis Non-Suppurative Tuberculous Spondylitis
L1 Gibbus Deformity, Pott's Spine
Psoriatic Arthritis
non-marginal syndesmophytes T11-L3
VERTEBRAE
Osteoporosis
FISH vertebrae
Osteomalacia
FISH vertebrae, bell-shaped thorax, kyphoscoliosis, pseudofractures
Sickle Cell Anaemia
FISH vertebrae, square off indentation
Osteomyelitis
endplate destruction
Beta Thalassemia Major
FISH VB, H VB, bone marrow dysplasia
Ankylosing Spondylitis
discovertebral joint:
Bomboo spine, Romanus lesion, Shiny corner sign, squaring of VB anteriorly, marginal syndesmophyte, ossified outer annular fibre
Ankylosing Spondylitis
apophyseal joint:
trolley track sign, Dagger sign
Reiter's Dx
non-marginal syndesmophyte, unilateral skipping level
DJD
blunting of uncinate process (batman)
DISC
Osteomyelitis
loss of disc height
Ochronosis
disc calcification
SKIN
Reiter's Dx
urethritis, conjunctivitis, polyarthritis, keratoderma blenorrhagicum
Progressive Systemic Sclerosis / Scleroderma
SYSTEMIC
Systemic Lupus Erythematosu
s triad of joint pain, fever and a rash
Progressive Systemic Sclerosis / Scleroderma
skin, lungs, GI, heart, renal, musculoskeletal systems, heartburn
Hypertrophic Osteoarthropathy
HOA systemic arthritis, periostitis
CALCIFICATION
Hyperparathyroidism
periarticular tumoral calcinosis
Calcium PyroPhosphate Deposition
CPPD unusual presentation & location TFCC, prominent subchondral cyst, chondrocalcinosis
Hydroxyapatite Deposition
Dx
HADD oval margin, calcific tendinitis
Ochronosis
disc calcification, vacuum phenomenon, chondrocalcinosis
Idiopathic Tumoral Calcinosis