76 results
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
Convergence Retraction Nystagmus ... nerve palsy Caused ... Convergence #retraction #nystagmus ... clinical #video #neurology ... #ophthalmology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
unidirectonal nystagmus ... bidirectional nystagmus ... Glomus Tumors - Vascular ... Dizziness #Vertigo #Neurology ... Diagnosis #Algorithm #Causes
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... Convergence retraction nystagmus ... setting sun sign" - Vascular ... gabifpucci #Parinauds #Syndrome ... diagnosis #pineal #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... setting sun" sign • Vascular ... neudrawlogy #Parinauds #syndrome ... #neurology #diagnosis
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... Varies • No neurologic ... or minutes with vascular ... causesNystagmus ... positional episodes caused
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... : Vascular (IS, ... : Vascular (SDH) ... paraneoplastic syndromes ... Diagnosis #Algorithm #Causes
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central Causes ... Vertigo Peripheral Causes ... Uncommon): - Vascular ... hemorrhage - Non-vascular ... differential #diagnosis #neurology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... Tonic-clonic Provoked: • Vascular ... thrombosis, Congenital vascular ... vasoconstriction syndrome ... #neurology
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
Lateral Medullary Syndrome ... - Wallenberg's Syndrome ... Clinical Findings: • Nausea ... vomiting/vertigo/nystagmus ... #Wallenbergs #neurology
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... • Progressive muscular ... Lambert-Eaton Myasthenic Syndrome ... Peripheral #Weakness #Neurology ... Diagnosis #Algorithm #Causes