19 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... - Low back pain ... Commonly caused ... #neurology #sensory ... #motor #leg #physicalexam
Clinical Features and Vascular Territories of Stroke
Anterior circulation—anterior cerebral artery (ACA) - Contralateral leg weakness
Anterior circulation—middle
Territories of Stroke ... cerebral artery (ACA ... Contralateral leg ... #CVA #Diagnosis ... #Neurology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Diagnosis Framework ... of Leg Pain: ... #diagnosis #lower ... #extremity #msk ... #physicalexam
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... • Pain/sensory disturbance ... #MSK #pathophysiology ... #diagnosis #symptoms
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
- Loss of sensory ... Limb • Post-stroke ... #Mechanisms #Neurology ... #Differential #Diagnosis ... #Algorithm #Causes
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... Carpal Tunnel Syndrome ... #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Sensory loss below ... saddle anesthesia. leg ... #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
Scotoma, Ocular pain ... involvement: Intractable nausea ... myelitis: Motor and sensory ... Manifestations #diagnosis ... #neurology #symptoms
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 ... - Emergency Causes ... Differential Diagnosis ... region (S2-S4 dermatomes ... #causes #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... at the level of sensory ... - Leg weakness ... #differential #diagnosis ... #neurology