7 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... • Cauda Equina Syndrome ... Narrowing of spinal canal ... claudication and weakness ... #sensory #motor
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Acute Spinal Cord ... Upper extremity weakness ... Sensory loss below ... and #Acute # ... SpinalCord #Injury
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
without Sensory ... Differential Diagnosis Algorithm ... • Cardio-pulmonary ... Lambert-Eaton Myasthenic Syndrome ... #Neurology #Differential
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... anesthesia and deltoid weakness ... #sensory #motor
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
MCTD, Sjogren syndrome ... : Sensory level ... #spinal #cord #spinalcord ... disorders #diagnosis #neurology ... differential #algorithm
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
disorder (Cardiac, pulmonary ... Impairment: • Acute ... stroke syndromes ... signs - Lack of sensory ... Differential #Diagnosis #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
spine • MCC- acute ... and/or genital sensory ... lower extremity weakness ... and sensory disturbances ... region (S2-S4 dermatomes