13 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Sensory Changes ... Neuropathy • Spinal ... Polymyositis • Duchenne ... Muscular Dystrophy ... #Neurology #Differential
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
WeaknessSpinal ... Cord: Demyelinating ... Trauma, Tumor • Motor ... #Causes #differential ... #diagnosis #neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
- Differential ... (Contralateral motor ... findings Unilateral Spinal ... Cord Lesions Above ... #Hemiplegia #Neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
cord - Spinal Cord ... Causes of spinal ... - Lower motor ... involvement Cauda ... #lesions #differential
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Conditions: • Cauda ... foot and lateral calf ... Commonly caused ... claudication and weakness ... #sensory #motor
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Incomplete spinal ... cord syndromes ... Disproportionate motor ... LMN types) • Cauda ... syndromes #diagnosis #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... - Differential ... Lower roots -> Cauda ... Cord Causes: 1 ... disorders #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
 •
and/or genital sensory ... - Emergency Causes ... cord infarct ... lower extremity weakness ... #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Weakness: - Weakness ... , motor, or autonomic ... • Infectious causes ... diagnosis #management #neurology ... #differential
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
cord. ... form part of the differential ... muscle atrophy, weakness ... hyporeflexia without sensory ... Satyendra Dhar MD