What rheumatic disease categories typically have unique radiographic features and are difficult to categorize using the inflammatory, noninflammatory, or gout-like patterns of radiographic changes?
• Collagen vascular disease (e.g., scleroderma, SLE)
• Endocrine arthropathies (e.g., hyperparathyroidism, acromegaly, hyperthyroidism)
• Miscellaneous (sickle cell disease, hemophilia, Paget’s disease, avascular necrosis, Charcot joints, sarcoidosis, hypertrophic osteoarthropathy)
