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Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... affects the skin, neurologic ... cognitive impairment, neurologic ... abdominal pain and GN Anti-GBM ... Urticarial Vasculitis (anti-C1q
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
• Bilateral signs ... levels • NMO-IgG (anti-AQP4 ... MCTD - Bechet disease ... AntiCRMP IgG, Anti-Hu ... diagnosis #management #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
• Symptoms and signs ... Hemorrhage - Ant ... Sarcoidosis, Behcet disease ... disorders #diagnosis #neurology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and their Disease ... - Graves' disease ... connective tissue disease ... (TTG) - Celiac disease ... #Associations #diseases
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
5-10% - Anti- ... 5-15% - Anti-Ku ... auto-immune, Infectious diseases ... sclerosis, Still's disease ... autoantibodies #signs
CT Lung Signs in Pulmonary Diseases - One Page Summary of Pulmonary Signs
 - Air Crescent
CT Lung Signs in ... Pulmonary Diseases ... - Air Crescent sign ... - Monod sign ... #Pulmonary #Diseases
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-dsDNA (in 70% ... Anti-histone (in ... connective tissue disease ... disease - MPO>PR3 ... #rheumatology #diseases
Brudzinski's Sign in Meningitis

Forced flexion of the neck elicits a reflex flexion of the hips. It
Brudzinski's Sign ... #Brudzinskis #Signs ... Clinical #Video #neurology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Goodpasture's Disease ... testing: anti-ANCA ... ab, anti-GBM ab ... , ANA, C3, C4, anti-CCP ... differential #diagnosis #nephrology
Hepatitis B (HBV) Serology

HBsAg - Presence denotes current HBV infection (chronic or acute)
HBV Core Antibody -
Hepatitis B (HBV) Serology ... some point - Anti-HBcAg ... infection - Anti-HBcAg ... of active viral disease ... HepatitisB #HBV #Serology