11 results
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... chewing, loss of smile ... test - Cogan sign ... - Peek sign ... immunologic assay - MuSK
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... • Cardio-pulmonary ... Oculomotor • Myasthenia ... Gravis • Lambert-Eaton ... Myasthenic Syndrome
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
non-localized EOM weakness ... Myasthenia gravis ... such as cogan sign ... tumor, and always ask ... #clinical #video
Drugs associated with worsening of Myasthenia Gravis (MG):
•	D-penicillamine 
•	Botulinum toxin.
•	Telithromycin
•	Fluoroquinolones 
•	Quinine
•	Magnesium
•	Macrolide antibiotics 
•	Corticosteroids (may cause transient
with worsening of Myasthenia ... Gravis (MG): • ... Corticosteroids (may cause ... higher risk of myasthenic ... because of bulbar weakness
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Weakness • Spinal ... Demyelinating Disease (MS ... Eaton Syndrome, Myasthenia ... Gravis, Organophosphate
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
Myasthenia Gravis ... likely to cause ... or respiratory weakness ... glucocorticoids - can cause ... #Gravis #diagnosis
Hyperthyroidism – symptoms and signs. 

Symptoms:

Weight loss, Increased appetite, Irritability/behaviour change, Restlessness, Malaise, Stiffness, Muscle weakness,
and signs. ... Symptoms: Weight ... Stiffness, Muscle weakness ... hypertension, Cardiac ... Palmar erythema, Graves
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
involvement: Intractable nausea ... Sjögren syndrome, Myasthenia ... gravis, Many others ... diagnosis #neurology #symptoms ... #signs
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Non-neuromuscular disorder (Cardiac ... Postsynaptic: Myasthenia ... Gravis - Lack ... of UMN/LMN signs
Hyperthyroidism Overview

Clinical Manifestation of Hyperthyroidism:
 • Fatigue
 • Weight loss
 • Heat intolerance
 • Depression, nervousness
irregularities • Weakness ... Cardiac arrhythmia ... hyperthyroidism #causes ... endocrinology #signs ... #symptoms #thyroid