22 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
CN VI (Abducens ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential # ... diagnosis #ocular
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
Alice in Wonderland ... Syndrome What? ... • CNS: parietal ... #diagnosis #neurology ... #differential
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... Sphenoid sinusitis (CN ... intracranial pressure (CN ... hypertension (CN ... #Diagnosis #Causes
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
treat underlying cause ... cirrhosis, nephrotic syndrome ... Pulmonary Diseases, CNS ... Disease, Meds ( ... #diagnosis #nephrology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... - Compatible syndrome ... + toxo IgG • CNS ... 30% present w/ CNS ... #diagnosis #causes
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... Young females Differential ... Diagnosis: • CN ... Ill Palsy - ... #neurology #ophthalmology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... HIV-Associated CNS ... Demyelinating disease caused ... hearing loss, palsy ... of the abducens
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
nervous system (CNS ... Inflammatory causes ... #neurology #inflammatory ... #differential # ... diagnosis
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • CN VI palsy ... for ptosis with CN ... Ill palsy ... • Neurologic
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central Causes ... Vertigo Peripheral Causes ... Vestibulocochlear Nerve (CN ... #differential # ... diagnosis #neurology