15 results
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 ... #Weakness #Neurology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Sensory loss below ... in hands) • Posterior ... > Posterior spinal ... #diagnosis #pathophysiology ... #orthopedics #neurology
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
patients with a peripheral ... #Diagnosis #PhysicalExam ... #Neurology #AVS ... VestibularSyndrome #Posterior ... #CVA #Peripheral
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Wrist drop - Occurs ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
lancinating - Peripheral ... regional pain syndrome ... Deafferentation - Loss of sensory ... Pain #Mechanisms #Neurology ... #Differential #Diagnosis
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
desaturation, Scotoma, Ocular ... Other brainstem syndromes ... myelitis: Motor and sensory ... Manifestations #diagnosis ... #neurology #symptoms
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Lesions Of The Peripheral ... signs - Lack of sensory ... dystrophies Work ... aminotransferases • Serology ... #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... Foot drop and sensory ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #leg #physicalexam
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... the lesion Posterior ... at the level of sensory ... #differential #diagnosis ... #neurology
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
- Ocular syphilis ... including anterior or posterior ... have positive serology ... of pain and sensory ... Latent #Tertiary #Diagnosis