11 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
bone. ... "pooping duck sign ... bone fracture ... "pooping duck sign ... #Diagnosis #Management
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
bones should be ... "Terry Thomas" sign ... bones should be ... ("Terry Thomas sign ... #Radiology #XRay
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Tertiary Lab Comparison ... : Commonly no signs ... , Fragile bones/ ... Hyperparathyroidism #diagnosis ... Secondary #Tertiary #pathophysiology
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
on axillary x-ray ... #Dislocation #Diagnosis ... #signs #symptoms ... #msk #orthopedics ... #pathophysiology
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
tear a portion of bone ... Fractures #msk #diagnosis ... #pathophysiology ... #signs #symptoms ... #orthopedics
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
Swelling notable on Xray ... boggy" joints, esp carpal ... RheumatoidArthritis #RA #pathophysiology ... #signs #symptoms ... #diagnosis
Psoriatic Arthritis: Pathogenesis and Clinical findings

In tendons and connective tissues:
 • Enthesitis  - Pain/tenderness over
insertion into bone ... destructive) • X-ray ... PsoriaticArthritis #pathophysiology ... #diagnosis #signs ... #symptoms
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
phosphorous in bones ... ultrasound and/or x-ray ... CPPD #Disease #Signs ... #Symptoms #Pathophysiology ... #Diagnosis
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
cause excessive bone ... the vertebral canal ... PagetsDisease #pathophysiology ... #diagnosis #signs ... #symptoms #complications
Avascular Necrosis: Pathogenesis and Clinical Findings
 • Physical Trauma (esp. to the scaphoid bone with damage
intermittent) - X-Ray ... hypolucency "Crescent sign ... AvascularNecrosis #pathophysiology ... #diagnosis #signs ... #symptoms