12 results
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Microglial cells are ... Increased Jaw Jerk reflex ... conditions listed in differential ... activity between nerve ... Lateral #Sclerosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Pronation - C7, C8 Wrist ... , T1 (median) Reflexes ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
form part of the differential ... LMN syndromes are ... UMN lesions are ... positive Babinski reflex ... cord, peripheral nerve
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... threat Cranial Nerves ... horizontal movements; also ... Casey Albin MD @ ... #PhysicalExam #neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... with peripheral nerve ... depressed deep tendon reflexes ... extremity, facial ... diagnosis #management #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... - Emergency Causes ... constipation Differential ... #diagnosis #causes ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... disorders #diagnosis #neurology ... #differential
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
extremity, facial ... Can begin in arms ... Decreased / Absent Reflexes ... : Arms or legs ... management #treatment #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
proximal weakness, arms ... life-threatening Differential ... Generalized fatigue - ALS ... PCB variants of GBS ... diagnosis #management #neurology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... tract, and often causes ... glomerulonephritis) • Anti-GBM ... aneurysms can also ... extremities, upper extremity