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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Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
Osteoarthritis ( ... OA): X-ray features ... bone-bone contact) #Osteoarthritis ... #OA #Xray #radiology
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
arthritis (RA): X-ray ... features • Soft ... HandXray #Diagnosis #Radiology
Benign Primary Bone Tumors: Pathogenesis of X-ray appearance
 • "Geographic" bone destruction
 • Lack of soft-tissue
Pathogenesis of X-ray ... Benign #BoneTumors #XRay ... #diagnosis #Radiology ... #Features
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
bone formation MSK ... joints over time -> Osteoarthritis ... -> Pathologic fractures