37 results
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
crises”. ... test - Cogan sign ... - Peek sign ... immunologic assay - MuSK ... diagnosis #management #neurology
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
antibodies - MuSK-positive ... likely to cause ... characteristic EMG finding ... glucocorticoids - can cause ... diagnosis #management #neurology
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Afferent Pupillary Defect ... Optic nerve* (main cause ... neuritis due to MS ... characterized this finding ... #RAPD #neurology
Anticonvulsants as Mood Stabilizers: Mechanism and Side-effect
Examples: Valproate, Carbamazepine, Lamotrigine
 • Mild anticholinergic effect -> Drowsiness
tremor, ataxia, asthenia ... • Neurologic ... effect - Sedation ... diplopia, ataxia, asthenia ... -> Nausea, vomiting
Alzheimer’s Disease: Pathogenesis and Clinical Findings
Risk factor for Late Onset Alzheimer's (99% of cases):
 - Increasing
Alzheimer's (99% of cases ... Alzheimer's (1% of cases ... chromosome 21) Signs ... Complications: • Deficit ... geriatrics #diagnosis #signs
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... Eaton Syndrome, Myasthenia ... Neuromuscular #Weakness #Causes ... differential #diagnosis #neurology
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
Ocular Myasthenia ... Myasthenia gravis ... such as cogan sign ... tumor, and always ask ... ophthalmology #neurology
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
visual acuity, ranging ... involvement: Intractable nausea ... Sjögren syndrome, Myasthenia ... Manifestations #diagnosis #neurology ... #symptoms #signs
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
Afferent Pupillary Defect ... afferent pupillary defect ... It is a clear sign ... regarding the cause ... #Neurology #Clinical
Causes of Bradykinetic Movement Disorders - Differential Diagnosis Algorithm
Parkinson's Disease (TRAP):
• Resting Tremor
• Cogwheel Rigidity
• Akinesia/Bradykinesia
•
Causes of Bradykinetic ... Bradykinesia • Falling ... • Cerebellar signs ... MovementDisorders #Neurology ... Diagnosis #Algorithm #Causes