11 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
commonly fractured carpal ... duck sign" on lateral ... Second most common carpal ... duck sign" on lateral ... #Wrist #Carpal
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Lower Extremity ... syndrome • DVT: Bilateral ... #Bilateral #Lower ... #Extremity #PhysicalExam ... #Pathophysiology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... dysfunction, and bilateral ... Narrowing of spinal canal ... #LowerLimb #Extremity ... sensory #motor #leg #physicalexam
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Dislocation On lateral ... associated injuries: Carpal ... trapezium, capitate, triquetrum ... Dislocation #Wrist #Carpal
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Carpal Tunnel Syndrome ... #UpperLimb #Extremity ... sensory #motor #arm #physicalexam
Scoliosis: Pathogenesis and clinical findings (Cobb Angle > 10 Degrees)

 • Incr Axial rotation of thoracic
plane -> Rib Hump (unilateral ... cage) • Incr lateral ... intervertebral canal ... pain • Incr lateral ... #Scoliosis #pathophysiology
Seesaw Nystagmus 

Sawtooth or seesaw nystagmus is an unusual but characteristic type of nystagmus. Typically there
in the midline, bilaterally ... mainly due to a unilateral ... presupposes a unilateral ... interstitial nucleus of Cajal ... nystagmus #sawtooth #physicalexam
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Amyotrophic Lateral ... sclerosis Pathophysiology ... (3) primary lateral ... segment: Upper extremity ... , lower extremity
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
• Sciatica • Tarsal ... cyanosis - Cool extremity ... diagnosis #lower #extremity ... #msk #physicalexam
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
involvement is bilaterally ... boggy" joints, esp carpal ... RheumatoidArthritis #RA #pathophysiology