18 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
The triquetrum ... commonly fractured carpal ... Second most common carpal ... Complications are ... #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
Satellite Sign on Physical Exam demonstrating Asymmetric Upper Extremity Weakness

The affected arm remains stationary, while the
Asymmetric Upper Extremity ... The affected arm ... the unaffected arm ... Satellite #Sign #PhysicalExam ... neurology #upper #extremity
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Narrowing of spinal canal ... #LowerLimb #Extremity ... sensory #motor #leg #physicalexam
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Framework for Lower Extremity ... Unilateral Lower Extremity ... Bilateral Lower Extremity ... #PhysicalExam # ... Pathophysiology
Acute Otitis Externa (Swimmer’s Ear): Pathogenesis and clinical findings
Pathogens = Pseudomonas aeruginosa (most common opportunistic), Staphylococcus,
external auditory canal ... external auditory canal ... tortuous auditory canal ... > Moist, dark, warm ... #SwimmersEar #pathophysiology
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
Acromegaly - Diagnosis and Management Summary - GrepMed Handbook 

Clinical Presentation: 
 • Classic Acromegaly: frontal
paresthesias (carpal ... malignancy Pathophysiology ... pituitary adenomas are ... useful as levels are ... Endocrinology #Treatment #Pathophysiology
Rheumatoid arthritis (RA): Pathogenesis and Joint diseases features
 • RA affects 1% of population, women >
manifestations are ... Acute-phase reactants are ... boggy" joints, esp carpal ... RheumatoidArthritis #RA #pathophysiology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Pathophysiology ... paralysis of all extremity ... Can begin in arms ... Absent Reflexes: Arms