| Abbreviations | Meaning |
 | BMN | Bone Marrow Necrosis |
 | ORBD-NRC | Osteoporosis And Related Bone Diseases - National Resource Center |
 | ABC | Aneurysmal Bone Cyst |
 | YA | Yersinia Arthritis |
 | GADS | Gonococcal Arthritis/dermatitis Syndrome |
 | CAEV | Caprine Arthritis-encephalitis Virus; Chironomus Attenuatus Entomopoxvirus |
 | SONH | Spontaneous Osteonecrosis Of The Hip |
 | NIAMS | National Institute Of Arthritis, Musculoskeletal And Skin Diseases |
 | ASP | Acute Symmetric Polyarthritis |
 | POS | Periosteal Osteosarcoma |
 | FOS | Fast Orthogonal Search; Fiberoptic Sigmoidoscopy; Fixation-off Sensitivity; Fractional Osteoid Surface; Framingham Offspring Study |
 | IAA | Infectious Agent, Arthritis |
 | AUD | Arthritis Of Unknown Diagnosis |
 | AOCR | American Osteopathic College Of Radiology; American Osteopathic College Of Rheumatology |
 | HOA | Hypertrophic Osteoarthropathy |