The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Rheumatoid arthritis (RA ... Extra-articular manifestations ... effusion on CXR • RA ... pathophysiology #signs ... #symptoms #diagnosis
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Mucocutaneous Manifestations ... cytokines -> localized inflammatory ... Mucocutaneous #Manifestations ... pathophysiology #diagnosis #signs ... #symptoms #complications
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Extra-articular manifestations ... • Rate of inflammatory ... etc • Systemic inflammation ... Extra-articular signs ... #symptoms #diagnosis
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Musculoskeletal Manifestations ... Erythematosus #SLE #MSK ... pathophysiology #signs ... #symptoms #diagnosis
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
joint disease Inflammatory ... Swollen Joints • Inflammation ... Extra-articular manifestations ... mild synovial inflammation ... Comparison #Versus #MSK
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
shoulder joint inflammation ... as post-inflammatory ... pathophysiology #diagnosis #symptoms ... #signs #stages ... #staging #msk
Psoriatic Arthritis: Pathogenesis and Clinical findings

In tendons and connective tissues:
 • Enthesitis  - Pain/tenderness over
• Dactylitis - Inflammation ... polyarthritis (like RA ... pathophysiology #diagnosis #signs ... #symptoms
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
activating cellular inflammatory ... swelling - GI Manifestations ... Pathophysiology #Diagnosis #Signs ... #Symptoms #Vasculitis
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
mastoid air cells (inflammation ... mucosa leads to inflammation ... : Extension of inflammatory ... pathophysiology #signs ... #symptoms #diagnosis
Ankylosing Spondylitis: Extra-articular Manifestations
 • Ocular - Inflammation of the iris, the anterior part of the
Extra-articular Manifestations ... photophobia • GI - Inflammatory ... endoscopy (Not Inflammatory ... pathophysiology #diagnosis #signs ... #symptoms