Extra-articular and Other Conditions Associated with Joint Pain Eyes • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis, GPA • Conjunctivitis - Spondyloarthropathies, SLE, GPA • Cytoid bodies (retinal exudates) - SLE • Scleritis - RA, Relapsing polychondritis, GPA • Ischemic optic neuritis - Giant cell arteritis, GPA • Iridocyclitis - Juvenile idiopathic arthritis Nails • Onycholysis - Psoriatic arthritis, Hyperthyroidism • Pitting - Psoriatic arthritis • Clubbing - IBD, Whipple's disease, Hyperthyroidism Fever • Bacterial or viral infection • Still's disease • Subacute bacterial endocarditis • Neoplasm Nodules • RA • Gout • Whipple's disease • Rheumatic fever • Amyloidosis • Sarcoidosis • Tophi - Gout • Jaundice - Hepatitis - Hemochromatosis • Hyperpigmentation - Whipple's disease - Hemochromatosis GI - Felty syndrome - Spondyloarthropathy-IBD - Splenomegaly • Felty's syndrome • Tumor-associated arthritis - Hepatomegaly • Whipple's disease • Hemochromatosis • Amyloidosis • Wilson's disease Pulmonary • Interstitial lung disease - Spondyloarthropathies, SLE • Pulmonary nodules - RA, SLE • Pleural disease - RA - SLE • Bronchiectasis - RA • Shrinking lung syndrome - SLE Neurologic system • Entrapment neuropathies - RA, Hypothyroidism, Hyperparathyroidism • Facial palsy - Lyme disease • Peripheral neuropathy - SLE, Amyloidosis • Chorea - Antiphospholipid-antibody syndrome, SLE, Rheumatic fever • Mononeuritis multiplex - RA, SLE, Lyme disease, Vasculitis (e.g., PAN) • Seizures - SLE Genitourinary system • Prostatitis - Reactive arthritis, Ankylosing spondylitis • Urethritis or cervicitis - Reactive arthritis, Gonococcal arthritis • Scrotal or vulvar ulcers - Behçet's syndrome • Hypogonadism - Hemochromatosis • Balanitis circinata - Reactive arthritis ENT • Oral ulcers - SLE, Behçet's syndrome, Reactive arthritis, GPA • Parotid enlargement - Sjögren's syndrome, Sarcoidosis • Macroglossia - Amyloidosis • Scalp tenderness - Giant cell arteritis • Bloody or severe sinusitis - GPA • Inflammation of ear, sparing the lobe - Relapsing polychondritis Telangiectasia • Scleroderma Thickened skin • Scleroderma • Amyloidosis • Eosinophilic fasciitis Hair thinning • Hypothyroidism • SLE Musculoskeletal System Tender points • Fibromyalgia Heberden's nodes (DIP joints), Bouchard's nodes (PIP joints) • Osteoarthritis Boutonnière and swan-neck deformities • RA, SLE, Ehlers-Danlos syndrome Dactylitis of digits • Psoriatic arthritis Lymphadenopathy • Tumor-associated arthritis • SLE Cardiovascular system • Mitral regurgitation and stenosis - Rheumatic fever • Aortic regurgitation - Ankylosing spondylitis, Rheumatic fever, Relapsing polychondritis, Reactive arthritis, Marfan syndrome, Takayasu's arteritis • Cardiomyopathies - Viral infection, Amyloidosis, Sarcoidosis, SLE, Polymyositis • New murmur, fever - Bacterial endocarditis, Rheumatic fever • Diminished peripheral pulses - Giant cell arteritis, Takayasu's arteritis #Extrarticular #conditions #joint #pain #differential #diagnosis #rheumatology