41 results
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... • Acute stroke syndromes ... Gravis - Lack of UMN ... #Weakness #Differential ... #Diagnosis #neurology
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
Motor Neuron (UMN ... form part of the differential ... However, in UMN ... LMN syndromes are ... cord, peripheral nerve
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
involving both UMN ... combination of UMN ... conditions listed in differential ... activity between nerve ... Lateral #Sclerosis #neurology
Tongue Fasciculations Secondary to Hypoglossal Nerve Damage

Most commonly associated with ALS - This LMN XII was
to Hypoglossal Nerve ... with ALS - This LMN ... Fasciculations #PhysicalExam ... #CNXII #CN12 #Neurology
Hoffmann's Reflex on Physical Exam
The Hoffmann's reflex itself involves loosely holding the middle finger and flicking
#Reflex #Sign #PhysicalExam ... #clinical #neurology ... #UMN #video #Pyramidal
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
of most cranial nerves ... that each cranial nerve ... XII nerve palsy ... #hypoglossal #physicalexam ... #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Ill (Oculomotor) Nerve ... IV (Trochlear) Nerve ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential #
Marcus Gunn Phenomenon - Jaw Winking Syndrome

Jaw-winking syndrome is thought to be caused by abnormal innervation
- Jaw Winking Syndrome ... Jaw-winking syndrome ... the trigeminal nerve ... clinical #video #neurology ... #physicalexam #
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Tumor • Motor Nerves ... Guillain-Barre syndrome ... multiplex, Phrenic nerve ... Weakness #Causes #differential ... #diagnosis #neurology
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
- Vestibular Nerve ... Vestibulocochlear Nerve ... Wallenberg syndrome ... Central #Causes #differential ... #diagnosis #neurology