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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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
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
ligaments First stage ... side) Second Stage ... movement) Third Stage ... pathophysiology #diagnosis ... #staging #msk
Complications of Measles: Pathogenesis and Clinical Findings
 • ADEM -> Fever, headache, neck stiffness, BBD, mental
Complications of ... stiffness, BBD, mental status ... infections #Measles #Complications ... #diagnosis #signs
Open Fractures: Mechanisms, Clinical Features and Complications
Gustilo-Anderson Classification:
 • Type I
   - Wound <
Clinical Features and Complications ... Open #Fractures #Diagnosis ... #Complications ... #MSK #Orthopedics
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Signs / Symptoms / Complications ... pain (shooting, stabbing ... CaudaEquina #Syndrome #MSK ... pathophysiology #diagnosis
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Erythematosus #SLE #MSK ... Musculoskeletal #Complications ... signs #symptoms #diagnosis
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
sensory • Before diagnosis ... Tingling, Burning, Stinging ... , Stabbing) - ... MeralgiaParesthetica #MSK ... #differential #diagnosis
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Signs/Symptoms/Complications ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
exposed areas -> Scaring ... with keratotic scaling ... pathophysiology #diagnosis ... signs #symptoms #complications
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
Hypertension Stage ... vascular tortuosity Stage ... -> AV nicking Stage ... ophthalmology #diagnosis ... signs #symptoms #complications