35 results
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Mitochondrial myopathy ... , Muscular dystrophy ... , Myotonic dystrophy ... differential #diagnosis #neurology
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
of Peripheral Weakness ... No Objective Weakness ... • Congenital Myopathy ... Duchenne Muscular Dystrophy ... #Neurology #Differential
Neurological Patterns of Weakness
 • Hemispheric lesion
 • Brainstem lesion
 • Spinal cord lesion
 • Polyneuropathy
Neurological Patterns of Weakness ... Polyneuropathy • Myopathy ... #Neurology #Patterns ... #Weakness #diagnosis
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Proximal Muscle Weakness ... Mimic Inflammatory Myopathy ... or peripheral neurologic ... Mitochondrial myopathy ... differential #causes #neurology
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Elevation (Pain > Weakness ... Critical Illness Myopathy ... Chronic Causes (Weakness ... PROXIMAL MUSCLE WEAKNESS ... - Muscular dystrophy
Causes of Peripheral Weakness - With and Without Sensory Changes - Differential Diagnosis Algorithm
With Sensory Changes:
of Peripheral Weakness ... • No Objective Weakness ... Oculomotor • Myopathy ... #Peripheral #Weakness ... #Sensory #Neurology
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
80%) - Proximal Weakness ... 10%) - Proximal Weakness ... femoral heads • Myopathy ... Complications #pathophysiology
Beevor's Sign on Physical Exam

Beevor's sign is abnormal upward (cephalad) movement of the umbilicus with truncal
abdominis muscle weakness ... facioscapulohumeral muscular dystrophy ... video #umbilicus #neurology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness ... I am weak": • Myopathy ... #Generalized #Weakness ... Diagnosis #causes #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Neurogenic Ptosis - Neurologic ... to ptosis and weakness ... • Myotonic dystrophy ... Oculopharyngeal muscular dystrophy ... Syndrome #Ptosis #neurology