40 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Bone/Joint Causes ... Patellofemoral pain syndrome ... cyanosis - Cool extremity ... diagnosis #lower #extremity ... #msk #physicalexam
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Framework for Lower Extremity ... Note: • Left leg ... after the right leg ... #PhysicalExam # ... Pathophysiology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... and bilateral leg ... Commonly caused ... #physicalexam
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Anterior Cord Syndrome ... hyperextension -> Upper extremity ... Primarily Upper Extremity ... saddle anesthesia. leg ... #diagnosis #pathophysiology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... loss of normal leg ... #CaudaEquina #Syndrome ... #MSK #pathophysiology
REBEL Review 99: Serotonin Syndrome via Yosuf Alam, MSIV

Presentation: Altered mentd status, Seizures, Myoclonus, Hypertension, Hyperthermia
99: Serotonin Syndrome ... Hyperthermia (most common cause ... rigidity (Lower extremity ... Upper extremity ... Cornerstone of treatment
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... #UpperLimb #Extremity ... sensory #motor #arm #physicalexam
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Guillain-Barre Pathophysiology ... paralysis of all extremity ... Weakness: Starts in legs ... Reflexes: Arms or legs
Pisa Syndrome (pleurothotonus) on Physical Exam
A tonic flexion of the trunk of the body to one
Pisa Syndrome (pleurothotonus ... Caused commonly ... Pathophysiology: ... Treatment: anticholinergics ... pleurothotonus #PhysicalExam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... unilateral lower extremity ... or absent lower extremity ... axial T1 and T2 Treatment ... differential #diagnosis #causes