22 results
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 weakness ... #CVA #Diagnosis ... #Neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
- Differential Diagnosis ... Brown-Sequard Syndrome ... pain and temperature ... ipsilateral to weakness ... #Hemiplegia #Neurology
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Incomplete spinal cord syndromes ... Ventral - Loss of pain ... multiradicular pain ... Incomplete #spinalcord #syndromes ... #diagnosis #neurology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Upper extremity weakness ... Sensory loss below ... #diagnosis #pathophysiology ... signs #symptoms #msk ... #orthopedics #neurology
Principal patterns of loss of sensation.
 (a) Thalamic lesion: sensory loss throughout opposite side (rare).
dissociated', i.e. pain ... Brown—Séquard syndrome ... spinothalamic (pain ... with ipsilateral weakness ... #Diagnosis #Neurology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Complications: • Weakness ... • Pain/sensory disturbance ... #MSK #pathophysiology ... #diagnosis #symptoms
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
syndrome - Deafferentation ... - Loss of sensory ... Limb • Post-stroke ... #Mechanisms #Neurology ... #Differential #Diagnosis
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... - Low back pain ... claudication and weakness ... #neurology #sensory ... #motor #leg #physicalexam
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Diagnosis Framework ... Impairment: • Acute stroke ... signs - Lack of sensory ... #Differential #Diagnosis ... #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 ... paralysis - Sensory ... #differential #diagnosis ... #neurology