85 results
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
pulmonary etc) • CNS ... • Acute stroke syndromes ... Paraneoplastic syndrome ... Myopathy: ... Differential #Diagnosis #neurology
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
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Guillain-Barre syndrome ... Lambert Eaton Syndrome ... Mitochondrial myopathy ... differential #diagnosis #neurology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... comparison to Horner's syndrome ... Extraocular Muscle Weakness ... neudrawlogy #CNIII #CN3 ... Nerve #Cranial #neurology
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
of Peripheral Weakness ... No Objective Weakness ... Lambert-Eaton Myasthenic Syndrome ... • Congenital Myopathy ... #Neurology #Differential
Cardiorenal Syndrome (CRS) Types
 • Type 1 - Acute CRS: Alteration of renal perfusion is the
Cardiorenal Syndrome ... Hypertension, CKD induced myopathy ... #Cardiorenal #Syndrome ... #CRS #Types #cardiology ... #nephrology
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
Symptoms of Hypophosphatemia
 • CNS: Seizures, Delirium, Paresthesias, Central & extrapontine myelinolysis, Hallucinations, Fatigue
 • Hematologic:
Hypophosphatemia • CNS ... MSK: Proximal myopathy ... Diaphragmatic weakness
Hypothyroidism – symptoms and signs.

Symptoms: 
Tiredness/malaise, 
Weight gain,
Anorexia,
Cold intolerance, 
Poor memory,
Change in appearance, 
Depression, 
Poor libido,
Myalgia, Muscle weakness ... Psychosis, Deafness ... of movement, Deafness ... Carpal timel syndrome ... hypertrophy, Proximal myopathy