| Rheumatologic (autoimmune/autoinflammatory) | Tumors/malignancies |
- Chronic nonbacterial osteomyelitis
- Dermatomyositis/polymyositis
- Familial Mediterranean fever
- Juvenile idiopathic arthritis
- Reactive arthritis
- Rheumatic fever
- Scleroderma
- Systemic lupus erythematosus
- Vasculitis
| - Aneurismal bone cyst
- Ewing sarcoma
- Leukemia
- Lymphoma
- Neuroblastoma
- Osteogenic sarcoma
- Osteochondroma
- Osteoid osteoma
- Other bone tumors
- Pigmented villonodular synovitis
- Spinal cord tumors
- Soft tissue sarcoma
|
| Metabolic | Orthopedic |
- Gaucher disease
- Hypervitaminosis A
- Metabolic myopathy
- Renal tubular acidosis
- Rickets
- Scurvy
| - Avascular necrosis* (Legg-Calvé-Perthes)
- Osteochondritis dissecans
- Osteochondrosis* (calcaneal apophysitis [Sever disease, tibial tuberosity avulsion], Osgood-Schlatter disease)
- Patellar-femoral pain syndrome
- Slipped capital femoral epiphysis
- Tarsal coalition
|
| Noninflammatory pain syndromes | Infection |
- Complex regional pain syndrome type I (reflex sympathetic dystrophy)
- Fibromyalgia
- Hypermobility syndrome
- Malingering
- School phobia/avoidance
- Somatization
| - Viral myositis
- Poststreptococcal polymyalgia
- Lyme disease
- Septic arthritis/pyomyositis/cellulitis/abscess
- Osteomyelitis
- Syphilis
- Trichinosis
- Tuberculosis
|
| Trauma (acute and chronic) | Miscellaneous (including hematologic and genetic) |
- Fractures
- Joint strain/sprain
- Overuse syndromes
- Myositis ossificans
- Nonaccidental trauma
- Stress fractures
| - Congenital hip dysplasia
- Congenital myopathies
- Deep vein thrombosis
- Fabry disease
- Hemophilia with hemarthrosis
- Intermittent nocturnal leg cramps
- Klippel-Trenaunay syndrome
- Restless legs syndrome
- Sickle cell anemia crisis
|
