50 results
Upper Extremity Nerve Pathologies 

 • Axillary Nerves
 • Musculocutaneous Nerve
 • Radial Nerve
 • Median
Upper Extremity Nerve ... • Radial Nerve ... • Median Nerve ... #Pathologies #differential ... #innervation #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
IV (Trochlear) Nerve ... palsy • Medial ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential #
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... nerve in the radial ... Carpal Tunnel Syndrome ... nerve distribution ... Myotomes #diagnosis #neurology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Nerve Palsy on ... nerve in its path ... #Nerve #Palsy # ... orthopedics #msk #sports ... #neurology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
Palsy - Oculomotor Nerve ... comparison to Horner's syndrome ... inferior rectus, medial ... Palsy #Oculomotor #Nerve ... #Cranial #neurology
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 ... Reflex L2 Anterior Medial ... Extension None L4 Medial ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Tumor • Motor Nerves ... Guillain-Barre syndrome ... multiplex, Phrenic nerve ... Weakness #Causes #differential ... #diagnosis #neurology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Dilated Pupil - Differential ... Framework If Altered Mental ... Oculomotor (3rd cranial nerve ... Dilated #Pupil #differential ... #diagnosis #neurology
Algorithm showing a stepwise approach to the assessment and investigation of a possible neuropathy. CIDP, chronic
Guillain-Barré syndrome ... palsies; NCS, nerve ... #Diagnosis #Neurology ... Algorithm #Evaluation #Differential
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
- Vestibular Nerve ... Vestibulocochlear Nerve ... Wallenberg syndrome ... Central #Causes #differential ... #diagnosis #neurology