19 results
One-and-a-Half Syndrome
1 - One eye cannot move AT ALL horizontally
1/2 - The other eye can only
One-and-a-Half Syndrome ... cannot move AT ALL ... Demyelination (Multiple Sclerosis ... #Syndrome #diagnosis ... #neurology
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... tumors - Multiple Sclerosis ... " - Vascular disease ... #diagnosis #pineal ... #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... tumors • Multiple sclerosis ... "setting sun" sign ... • Vascular disease ... #neurology #diagnosis
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
often classified as ... Uncommon): - Vascular ... migraines, Multiple sclerosis ... #differential #diagnosis ... #neurology
Multiple Sclerosis - Summary

Multiple Sclerosis (MS) is an autoimmune-mediated neurodegenerative disease of the central nervous system
• Or brainstem syndromes ... such as internuclear ... Diagnosis - Based ... objective evidence of neurologic ... #neurology #treatment
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Amyotrophic Lateral Sclerosis ... finding of lateral sclerosis ... 4) progressive muscular ... Upper extremity, lower ... #neurology #diagnosis
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
One and a Half Syndrome ... , and multiple sclerosis ... There was also high ... the hospital, diagnosed ... ophthalmology #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... fibular neck such as ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... lung nodules, may also ... : • Multiple Sclerosis ... Neuro Behcets Vascular ... causes #radiology #neurology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
injury, often from vascular ... Mixed upper and lower ... #diagnosis #pathophysiology ... #signs #symptoms ... #orthopedics #neurology