11 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Reflexes: • Knee ... • Cauda Equina Syndrome ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
(CES) is usually ... constipation Differential ... or absent lower extremity ... #differential # ... diagnosis #causes #neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
of Hemiplegia - Differential ... contralateral extremity ... findings Unilateral Spinal ... Brown-Sequard Syndrome ... #Hemiplegia #Neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential ... MCTD, Sjogren syndrome ... , lower extremity ... disorders #diagnosis #neurology ... #differential
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... deficiency etc) • Spinal ... cyanosis - Cool extremity ... diagnosis #lower #extremity ... #msk #physicalexam
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... DTR’s • Onset: Few ... paralysis of all extremity ... of intrathecal spinal ... management #treatment #neurology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
ulceration • Ocular ... skin injury) • Neurologic ... white matter, spinal ... Behcet disease) Differential ... Leukemia, Lymphoma Ocular
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... • Onset: few days ... paralysis of all extremity ... axonal • MRI - Spinal ... diagnosis #management #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
thyroid, Sjogren syndrome ... Ocular- 50%: Ptosis ... life-threatening Differential ... stimulation - Single ... diagnosis #management #neurology
Left Abducens Spasm on Physical Exam

A 50 yr male with left facial spasm and diplopia, with
occurring for a few ... paroxysmal brainstem syndrome ... Spasm #CNVI #CN6 #PhysicalExam ... #clinical #ocular ... ophthalmology #neurology