The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Account created for The Calgary Guide to Understanding Disease - Linking pathophysiology to clinical presentation - http://calgaryguide.ucalgary.ca/
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Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Systemic Lupus Erythematosus ... #Systemic #Lupus ... Erythematosus #SLE #MSK ... Musculoskeletal #Complications ... #pathophysiology
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... Subacute cutaneous lupus ... Phenomenon #Lupus ... Manifestations #pathophysiology ... signs #symptoms #complications
Disc Herniations - Pathogenesis and Complications
• 90% of Lumbar disc herniations happen at L4/5 and L5/S1
•
Pathogenesis and Complications ... happen at C6/7 Aging ... DiscHerniations #complications ... #msk #pathophysiology
Boutonniere Deformity: Pathogenesis and Complications
 • Hyperextension of DIP
 • Flexion of PIP
=> Boutonniere Deformity =>
Pathogenesis and Complications ... joint => Premanent contracture ... Boutonniere #Deformity #pathophysiology ... #msk #rheumatoidarthritis
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Signs / Symptoms / Complications ... pain (shooting, stabbing ... CaudaEquina #Syndrome #MSK ... #pathophysiology
Dupuytren’s Disease: Pathogenesis and Clinical Findings
 • Aging, smoking and/or diabetes -> Microangiopathy and palmar fascia
Clinical Findings • Aging ... Dupuytrens #Disease #Contractures ... #pathophysiology ... #msk
Diffuse Systemic Sclerosis (Scleroderma)
 - Pulmonary Fibrosis -> Crackles, Abnormal CXR
 - Pulmonary Hypertension, Right Heart
Renal Failure - Mask ... (i.e. a "purse-string ... Finger/hand/elbow contractures ... #Scleroderma #pathophysiology