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Signs in Musculoskeletal Radiology

Signs in Musculoskeletal Radiology is an open database of common and not so common signs used in Musculoskeletal Radiology. Initial concept and content based on Interactive Atlas of Signs in Musculoskeletal Radiology


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Absent Bow Tie Sign (Bucket-handle tear of the menisci)
Anteater Nose (Calcaneonavicular coalition)
Anterior Drawer Sign (ACL tear)
Bamboo Spine (Ankylosing spondylitis)
Bite Sign (Avascular necrosis)
Blade of Grass Sign (Paget's disease)
Blister of Bone (Aneurysmal bone cyst)
Bone Bruise Sign (ACL tear)
Bone-in-Bone Sign (Osteopetrosis)
Boutonniere Deformity (Rheumatoid arthritis)
Bow-Tie Sign (Discoid meniscus)
Brim Sign (Paget's disease)
Button Sequestrum (Eosinophilic granuloma)
C Sign (Subtalar coalition)
Cockade Image (Intraosseous lipoma)
Cortical Ring Sign (Rotary subluxation)
Cotton Wool Sign (Paget's disease)
Crescent Sign (Avascular necrosis)
Crowded Carpal Sign (Volar perilunar dislocation)
Cupids Bow Contour (Normal spine)
Dagger Sign (Ankylosing spondylitis)
Deep Lateral Femoral Notch Sign (ACL tear)
Double PCL Sign (Bucket-handle tear of the menisci)
Drooping Shoulder Sign (Inferior subluxation of the shoulder)
Elbow Fat Pad Sign (Elbow effusion)
Fallen Fragment Sign (Unicameral bone cyst)
FBI Sign (Lipohemarthrosis)
Fish Vertebra (Osteopenia)
Fluid-Fluid Level (Aneurysmal bone cyst)
Fragment-in-Notch Sign (Bucket-handle tear of the menisci)
H-Shaped Vertebra (Sickle cell disease)
Hair-on-End Sign (Hemolytic anemia)
Half Moon Sign (Absent in posterior dislocation of the shoulder)
Heel Pad Sign (Acromegaly)
Hill-Sachs Sign (Anterior shoulder dislocation)
Incomplete Ring Sign (Spondylolysis)
Intravertebral Vacuum Cleft Sign (Avascular necrosis)
Inverted Napoleon Hat Sign (Spondylolisthesis)
Ivory Phalanx Sign (Psoriasis)
Ivory Vertebra Sign (Metastases, Paget's disease, lymphoma)
Lateral Capsular Sign (ACL tear - Segond fracture)
Medial Capsular Sign (Reverse Segond injury)
Metacarpal Sign (Short 4th metacarpal)
Pedestal Sign (Loosening prosthesis)
Pneumoarthrogram Sign (Normal - No joint effusion)
Pronator Sign (Wrist fracture)
Reverse Hill-Sachs Lesion (Posterior shoulder dislocation)
Rim Sign (Posterior shoulder dislocation)
Rugger Jersey Sign (Chronic renal failure)
Sail Sign (Elbow effusion)
Sausage Digit (Psoriasis)
Scotty Dog Sign (Spondylolysis)
Segond Fracture (ACL rupture)
Step-Off Vertebral Body Sign (Sickle cell disease, Gaucher's disease)
Swan Neck Deformity Sign (Rheumatoid arthritis)
Teardrop Sign (Ankle effusion)
Terry Thomas Sign (Scapholunate dissociation)
Tooth Sign (Enthesopathy)
Trolley-track Sign (Ankylosing spondylitis)
Trough Line (Posterior shoulder dislocation)
Tumbling Bullet Sign (Post-traumatic bone cyst)
Vacuum Phenomenon (Degenerative disk disease)

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