6 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... • Cauda Equina Syndrome ... stopping walking (vascular ... Myotomes #diagnosis #neurology ... #leg #physicalexam
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Weakness without Sensory ... Changes - Differential ... Diagnosis Algorithm ... Lambert-Eaton Myasthenic Syndrome ... Peripheral #Weakness #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... Motor Function Shoulder ... Myotomes #diagnosis #neurology ... #sensory #motor ... #arm #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
and/or genital sensory ... lumbar stenosis • Vascular ... region (S2-S4 dermatomes ... #differential # ... diagnosis #causes #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... Vascular/Blockage ... MCTD, Sjogren syndrome ... disorders #diagnosis #neurology ... #algorithm
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... vasculitis • Sensory ... pulse deficits vascular ... proximal muscles of shoulder ... affects the skin, neurologic