15 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsy • Medial ... Fasciculus (MLF) Iniury ... ophthalmology #neurology ... #differential # ... diagnosis #ocular
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... spared in this injury ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Spinal Cord Injury ... by Nerve Root Levels ... #SpinalCord #Injury ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Tumor • Motor Nerves ... injury, Sarcoid ... Shellfish poisoning, Meds ... Weakness #Causes #differential ... #diagnosis #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • Neurologic ... symptoms suggest ... depress when looking medially ... #DoubleVision #Differential
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
capitellum (age 1), radial ... anterior interosseous nerve ... brachial artery injury ... Humerus #Radiology #XRay ... #Diagnosis #Management
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... Diagnosis Framework ... headache, altered mental ... of the abducens nerve ... CNS #Infections #differential
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
Diagnosis Framework ... - Autonomic symptoms ... Traumatic brain injury ... the trigeminal nerve ... #Neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... Lower motor neuron symptoms ... anterior horn gray ... syndromes #lesions #differential ... #diagnosis #neurology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
may precede the neurologic ... Neurological symptoms ... Reversible course Differential ... Seizures: Treat with AEDs ... #management #neurology