22 results
Jaw Clonus on Physical Exam

A 24-year-old man presented with progressive dysphagia, dysarthria, and weakness in his
clonus and muscle fasciculations ... consistent with a diagnosis ... of amyotrophic ... PhysicalExam #Clinical #Video ... #ALS #Neurology
Pseudobulbar Affect
Characteristics (These episodes usually cause distress and impairment in occupational or social functioning):
 - Extreme
crying; Diseases: Amyotrophic ... Lateral Sclerosis (ALS ... Traumatic Brain Injury ... #differential # ... diagnosis
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Diagnosis Algorithm ... Neuropathy - Atrophy, Fasciculations ... • Myasthenia Gravis ... Lambert-Eaton Myasthenic Syndrome ... Peripheral #Weakness #Neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Motor Nerves: ALS ... Phrenic nerve injury ... , Myasthenia Gravis ... Weakness #Causes #differential ... #diagnosis #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... Diagnosis Framework ... Neurogenic Ptosis - Neurologic ... #Ptosis #neurology ... #Differential #
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Amyotrophic Lateral ... Muscle twitching (fasciculations ... BULBAR: Tongue fasciculations ... conditions listed in differential ... #Sclerosis #neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Acute spinal cord injury ... Eclampsia, Late ALS ... Testing #Causes #differential ... #diagnosis #table ... #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Fasciculus (MLF) Iniury ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential # ... diagnosis #ocular
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Ocular- 50%: Ptosis ... life-threatening Differential ... Generalized fatigue - ALS ... myasthenia Diagnosis ... #neurology
Causes of Dysarthria - Differential Diagnosis Algorithm
Lower Motor Neuron - Slow, Low Volume, Breathy Speech, Tongue
Diagnosis Algorithm ... Facial Atrophy Fasciculations ... • Myasthenia Gravis ... Sclerosis • Amyotrophic ... #Dysarthria #Neurology