79 results
Bilateral LMN palsy with tongue weakness, wasting and fasciculations.  →  Bulbar motor Neuron disease

Note
Bilateral LMN palsy ... differentiates this from an UMN ... fasciculations #LMN
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
lower extremities, LMN ... small band of LMN ... paraparesis (mixed UMN ... and LMN types) ... weakness (purely LMN
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
, LMN and brainstem ... and LMN signs in ... atrophy, with pure LMN ... and LMN signs to ... and LMN signs on
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
motor neuron (LMN ... disorders may mimic an LMN ... In an LMN lesion ... LMN syndromes are ... LMN lesions are
Tongue Fasciculations Secondary to Hypoglossal Nerve Damage

Most commonly associated with ALS - This LMN XII was
with ALS - This LMN
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Infection • Neuro: UMN ... stroke, tumor), LMN
Floppy Baby Syndrome
 • Infantile Botulism
 • Acute Flaccid Myelitis
 • Guillain Barre
 • Neonatal Myasthenia
is crucial • UMN ... LMN signs - Assess
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
Deviation caused by UMN ... The UMN innervation ... looks like a left LMN ... CT brain ⬇️ Dx- UMN ... Tongue #Deviation #UMN
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Gravis - Lack of UMN ... /LMN signs - Lack
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
: Areflexia UMN ... plantar response LMN