34 results
Critical and Emergent Causes of Neuromuscular Weakness
CRITICAL DIAGNOSES 
 - Cerebral cortex or subcortical 
 -
- Cerebral cortex ... Brainstem - Spinal cord ... - Peripheral nerve ... - Cerebral cortex ... #Differential #Neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
multiple spinal cord ... and LMN signs in ... and LMN signs to ... EMG: LMN Signs in ... Lateral #Sclerosis #neurology
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
from the cerebral cortex ... clinically characterized ... very different clinical ... positive Babinski reflex ... , peripheral nerve
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
causes of Facial Nerve ... Hyperacusis - Loss of Corneal ... Reflex - Ptosis ... #Bells #Palsy #Neurology ... #Signs #Symptoms
Hoffmann's Reflex on Physical Exam
The Hoffmann's reflex itself involves loosely holding the middle finger and flicking
Hoffmann's Reflex ... are not useful signs ... #Sign #PhysicalExam ... #clinical #neurology ... #UMN #video #Pyramidal
Woltman’s sign on Physical Exam

53-year-old man presented with fatigue and sensitivity to cold. A physical examination
sensitivity to cold ... the ankle jerk reflex ... , is a neurologic ... #Delayed #Clinical ... #Video #Neurology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
: CHF, valves, COPD ... Rhabdomyolysis, Critical ... Infection • Neuro: UMN ... (stroke, tumor) ... Diagnosis #causes #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
neurological lesion: Clinical ... • Symptoms and signs ... dysfunction • Abnormal reflexes ... : Areflexia UMN ... disorders #diagnosis #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
of the spinal cord ... Gravis - Lack of UMN ... /LMN signs - Lack ... aminotransferases • Serology ... Differential #Diagnosis #neurology
Intact Corneomandibular (Wartenberg) Reflex

Patient with pontine hemorrhage without impaired consciousness - Left corneal stimulation triggers contralateral
consciousness - Left corneal ... emphasize that this sign ... #Corneal #Corneomandibular ... #PhysicalExam #clinical ... #Neurology #Video