11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Dermatomes and Myotomes ... nerve in the radial ... in the median nerve ... #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... Medical Emergency ... Commonly caused ... damage to peroneal nerve ... #diagnosis #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... Poliomyelitis, Guillain-Barre ... #differential #diagnosis ... #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... Epidemiology: • 1-2 cases ... paralysis of all extremity ... Diagnosis: • ... #Syndrome #diagnosis
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 ... cord • Guillain-Barre ... region (S2-S4 dermatomes ... #causes #neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... paralysis of all extremity ... #Syndrome #diagnosis ... #management #neurology
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
and neutrophilic dermatoses ... joint and spine, & medium ... to large lower-extremity ... Rule out other causes ... #Rheumatology #
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... disruption ○ Otitis media ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... Labyrinthitis ○ Epstein-Barr
Oppositional Grasp Weakness in Carpal Tunnel Syndrome

Dysfunction of the six- Opposition weakness-in carpal tunnel syndrome with
weakness of the median ... nerve & Ulnar nerve ... In this case, the ... #clinical #video ... #orthopedics #msk
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
the follow up video ... formation) and MLF (medial ... The most common causes ... the hospital, diagnosed ... with MS, and started