Anatomic snuffbox tenderness
Scaphoid fracture
Anti-histone
Drug-induced lupus
Arterial and venous thromboses + recurrent miscarriages
Antiphospholipid antibody syndrome
Bamboo spine
Ankylosing spondylitis
- Blue sclera
- frequent fractures
Osteogenesis imperfecta
Butterfly or malar rash
Systemic lupus erythematosus
Chondrocalcinosis
Pseudogout
Coronary artery aneurysms
Kawasaki Syndrome
Displaced anterior fat pad/posterior fat pad in arm
Supracondylar humerus fracture
Frozen shoulder stiffness
Adhesive capsulitis
“Hair on end” or “sunburst” on x-rays
Osteosarcoma
Heliotrope rash, shawl sign
Dermatomyositis
HLA-B27 positivity
- Psoriatic arthritis
- Enteropathic arthritis (CD or UC)
- Ankylosing spondylitis
- Reactive arthritis
- Males 10-15 years old
- growth spurt or athletics
Osgood-Schlatter disease
- Morning stiffness > 1 hour
- improvement throughout day
- ulnar deviation
Rheumatoid arthritis
- Negatively birefringent
- needle-shaped crystals
Gout
- “Onion skin” or “moth-eaten” on radiograph
Ewing sarcoma
Osteonecrosis of the mandible
Bisphosphonates
- Pain and stiffness in proximal joints and muscles
- but normal muscle strength
Polymyalgia rheumatica
“Pencil in a cup” deformity on x-ray
Psoriatic arthritis
Positive straight leg raise
Herniated nucleus pulposus
Punched wall, now pain along medial hand blade
Boxer’s fracture
“Rat/mouse bite lesions” on x-ray
Gout
“Scotty dog” on lumbar oblique x-rays
Spondylolysis
