19 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
distal to distal ulna ... , pain with wrist ... distal radius or ulna ... Triquetrum #Fracture #Wrist ... #XRay #Diagnosis
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... - Differential Diagnosis ... Compression: • Carpal ... Tunnel • Ulnar ... #Algorithm #Causes
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
joints (shoulders, wrists ... disease states Pathophysiology ... atypical locations: Wrist ... culture used to diagnose ... knees, fingers, wrist
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
small joints (wrists ... boggy" joints, esp carpal ... Boutonniere's ulnar ... RheumatoidArthritis #RA #pathophysiology ... signs #symptoms #diagnosis
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
- Differential Diagnosis ... birefringent - CPPD ... involve the b/l wrists ... #Differential #Diagnosis ... #Causes #Schema
High Output Heart Failure - Pathophysiology and Differential Diagnosis
Obesity - Systemic Vasodilation, Vasoactive Adipokines
Arteriovenous Fistula -
Heart Failure - Pathophysiology ... and Differential Diagnosis ... Disease - Especially COPD ... #Differential #Diagnosis ... #cardiology #causes
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
share the same pathophysiology ... • Other rare causes ... overgrowth: • Carpal ... Overproduction #diagnosis ... endocrinology #pathophysiology
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
) Pathophysiology ... joints (shoulders, wrists ... often involves the wrists ... culture used to diagnose ... #Rheumatology #diagnosis
Pseudogout: pathogenesis and clinical findings
 - Idiopathic (vast majority of cases) -> Mechanism unknown
 - Familial
vast majority of cases ... pyrophosphate dihydrate (CPPD ... and/or x-ray - CPPD ... Signs #Symptoms #Pathophysiology ... #Diagnosis