25 results
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Tumor • Motor Nerves ... Guillain-Barre syndrome ... #differential #diagnosis ... #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
IV (Trochlear) Nerve ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential #diagnosis ... #ocular
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
Palsy - Oculomotor Nerve ... comparison to Horner's syndrome ... Extraocular Muscle Weakness ... #Cranial #neurology ... #diagnosis
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
30%) • Facial Nerve ... • Pain: Due to nerve ... Guillain-Barre Diagnosis ... #diagnosis #management ... #treatment #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Diagnosis Framework ... • Acute stroke syndromes ... Paraneoplastic syndrome ... #Differential #Diagnosis ... #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Neurogenic Ptosis - Neurologic ... junction, cranial nerve ... to ptosis and weakness ... eyelid: • Third nerve ... #Ptosis #neurology
NINDS Diagnostic Criteria for Guillain Barre Syndrome 
Features Required for Guillain-Barré Syndrome:
 • Progressive muscle weakness
Progressive muscle weakness ... Progression of weakness ... signs, Cranial nerve ... persistent asymmetry of weakness ... #neurology #neuropathy
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
- Differential Diagnosis ... Consciousness • Cranial Nerve ... Brown-Sequard Syndrome ... ipsilateral to weakness ... #Hemiplegia #Neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Ocular- 50%: Ptosis ... Brain stem/Cranial nerve ... myasthenia Diagnosis ... - Repetitive nerve ... #management #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Carpal Tunnel Syndrome ... anesthesia and deltoid weakness ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam