14 results
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central ... - Vestibular Nerve ... Vestibulocochlear Nerve ... (CN VIII): Vestibular ... differential #diagnosis #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
(Trochlear) Nerve ... (Abducens) Nerve ... One-and-a-half Syndrome ... #Localization #ophthalmology ... #neurology #differential
Types of Facial Paralysis - Peripheral vs Central Lesions

Facial weakness or paralysis may result either from
vs Central Lesions ... , the facial nerve ... #CNVII #CN7 #Peripheral ... #Nerve #Paralysis ... #Bells #Palsy #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... to the radial nerve ... Carpal Tunnel Syndrome ... in the median nerve ... Myotomes #diagnosis #neurology
Oppositional Grasp Weakness in Carpal Tunnel Syndrome

Dysfunction of the six- Opposition weakness-in carpal tunnel syndrome with
Tunnel Syndrome ... of the median nerve ... & Ulnar nerve ( ... #physicaleaxm #neurology ... #orthopedics #msk
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
pulmonary etc) • CNS ... lesions of the central ... Lesions Of The Peripheral ... aminotransferases • Serology ... Differential #Diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Biceps - C5, C6 ... • Cauda Equina Syndrome ... damage to peroneal nerve ... Narrowing of spinal canal ... Myotomes #diagnosis #neurology
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... arises from C5, C6 ... (which provide central ... Anatomy #diagnosis #neurology ... #orthopedics
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
CN III palsy 2. ... junction, cranial nerve ... eyelid: • Third nerve ... #Ptosis #neurology ... Differential #Diagnosis #ophthalmology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
Orbital Apex Syndrome ... Orbital Apex Syndrome ... fissure and optic canal ... clinical #video #ophthalmology ... #physicalexam #neurology