28 results
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
Cord Injury by Nerve ... L3 Medial Femoral ... Extension None L4 Medial ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsy • Medial ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential # ... diagnosis #ocular
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
) Reflexes: ... nerve in the radial ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
The median nerve ... middle finger. 2) Ask ... Hoffmanns #Sign #Reflex ... Abnormal #clinical #video ... #neurology #PhysicalExam
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Demyelinating Disease (MS ... Tumor • Motor Nerves ... Guillain-Barre syndrome ... Weakness #Causes #differential ... #diagnosis #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 ... Diagnosis: • ... Imaging studies: • MRI ... #differential # ... #neurology
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Pain (Otalgia) - Differential ... Diagnosis Framework ... Otalgia: • Otitis media ... 10%) • Otitis media ... #diagnosis
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Diagnosis Algorithm ... Restless Legs Syndrome ... Medical/Psychiatric ... Disorders • Neurologic ... Parkinson's, MS)
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Diagnosis Framework ... EMG) studies • MRI ... #Weakness #Differential ... #Diagnosis #neurology
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
of normal leg reflexes ... damage to sacral nerves ... suspected, immediate MRI ... #MSK #pathophysiology ... #diagnosis #symptoms