31 results
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
symmetric muscle weakness ... symmetric muscle weakness ... Anti-retrovirals, Gemcitabine Lupus ... uncommon 5-15% of lupus ... diagnosis #comparison #rheumatology
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Systemic Lupus Erythematosus ... 80%) - Proximal Weakness ... femoral heads • Myopathy ... #Systemic #Lupus ... Complications #pathophysiology
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Disease: Systemic Lupus ... Erythematous, Systemic Vasculitis ... , Inflammatory Myopathy ... Differential #Diagnosis #rheumatology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Churg-Strauss syndrome ... - systemic lupus ... - Schnitzler syndrome ... - Sjögren syndrome ... Vessels #Diagnosis #Rheumatology
Systemic Lupus Erythematosus: Gastrointestinal Manifestations
 - Thrombosis of vessels in the pancreas, Vasculitis -> Acute Pancreatitis
Systemic Lupus Erythematosus ... the pancreas, Vasculitis ... - Budd Chiari Syndrome ... #Systemic #Lupus ... Complications #pathophysiology
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
Manifestations of Systemic Lupus ... Demyelinating Syndrome ... Aseptic Meningitis, Myelopathy ... Disease, PRES Pathophysiology ... CNS #neurology #rheumatology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... Inflammatory: Vasculitis ... Paraneoplastic syndrome ... Lambert-Eaton - Isaacs' syndrome ... Myopathy:
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... • Lupus (SLE): ... glycoprotein I (ß2GP), Lupus ... LAC) • Sjogren Syndrome ... Polymerase Ill • ANCA Vasculitis
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Myositis Necrotizing myopathy ... level of muscle weakness ... anti-synthetase syndrome ... have significant weakness ... Myositis #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
inflammation Others: • Lupus ... myalgia and muscle weakness ... • Cogan Syndrome ... such as systemic lupus ... differential #diagnosis #rheumatology