29 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... pain, sciatica, saddle ... Commonly caused ... #neurology #sensory ... #motor #leg #physicalexam
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Causes of Hemiplegia ... - Differential Diagnosis ... Brown-Sequard Syndrome ... #Hemiplegia #Neurology ... #Algorithm #Causes
Confabulation
What? Honest Lie.  
No incoming sensory information + Filling of the blanks with different information
No incoming sensory ... Diseases: Korsakoff Syndrome ... Disease, Anton's Syndrome ... #differential #diagnosis ... #causes #neurology
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Incomplete spinal cord syndromes ... Lesion - Suspended sensory ... rectal dysfunction, saddle ... Incomplete #spinalcord #syndromes ... #diagnosis #neurology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation ... wasting from other causes ... suggests extra-renal causes ... #Hypokalemia #diagnosis ... differential #potassium #nephrology
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Weakness without Sensory ... - Differential Diagnosis ... Lambert-Eaton Myasthenic Syndrome ... Peripheral #Weakness #Neurology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
- Differential Diagnosis ... , Liddle syndrome ... #Differential #Diagnosis ... #Algorithm #Nephrology ... #Causes
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Anterior Cord Syndrome ... Sensory loss below ... rectal reflex. saddle ... #diagnosis #pathophysiology ... #orthopedics #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Dermatomes #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
 •
sequestration • Saddle ... and/or genital sensory ... Mnemonic: • S - Saddle ... - Emergency Causes ... #causes #neurology