11 results
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Resp/Heme: CHF, valves ... stroke, tumor), LMN ... Polyneuropathy, ALS ... NMJ disorder (Myasthenia ... Diagnosis #causes #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... Generalized fatigue - ALS ... test - Cogan sign ... - Peek sign ... diagnosis #management #neurology
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
age 50 years in men ... antibodies - MuSK-positive ... • All patients ... be performed in all ... diagnosis #management #neurology
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
Ocular Myasthenia ... Myasthenia gravis ... cogan sign and ... tumor, and always ask ... ophthalmology #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Demyelinating Disease (MS ... Motor Nerves: ALS ... Eaton Syndrome, Myasthenia ... Weakness #Causes #differential ... #diagnosis #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
signs in the limbs ... signs to determine ... EMG: LMN Signs in ... conditions listed in differential ... Lateral #Sclerosis #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • Neurologic ... suggest a mass as ... • Myasthenia ... Error • Cataract/Lens
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Postsynaptic: Myasthenia ... - Lack of UMN/LMN ... signs - Lack ... #Diagnosis #neurology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
with systemic, neurologic ... systemic sx + signs ... or sed rate): Value ... very remarkable w/differential ... and age/2 for men
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... arthralgia, arm/leg ... affects the skin, neurologic ... aneurysms can also