36 results
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
Batwing A bilateral ... sparing of the periphery ... Reverse Batwing Peripheral ... #Differential #RadiologyAssistant
Visual Pathway Neural Lesions
A) Optic Nerve → Left Anopia
B) Optic Chiasm → Bitemporal Hemianopia
C) Lateral Geniculate
Hemianopia C) Lateral ... Lesions #Optic #ophthalmology ... #neurology
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central ... Causes of Vertigo Peripheral ... (TIA): • Lateral ... / #Vertigo #Peripheral ... differential #diagnosis #neurology
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
Neuro-OphthaImoIogy ... hemianopia) - Lateral ... NeuroOphthaImoIogy #Neurology ... Anatomy #Causes #Ophthalmology
Bell's Phenomenon on Physical Exam

Carles Bell realized that when trying to close the eye on the
same side of the peripheral ... #PhysicalExam #ophthalmology ... #neurology
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Forehead involved = Peripheral ... lesion - Bilateral ... Algorithm #Causes #neurology
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
intact) - Usually bilateral ... Robertson #Pupil #neurology ... #diagnosis #ophthalmology
Sarcoidosis 
Non-caseating granulomas (Composed of T-helper & inflammatory cells) 
Clinical:
 • Disease fatal in 10% of
exertion • Neurologic ... Bell's palsy, peripheral ... dysrhythmias • Ophthalmologic
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
arthritis and bilateral ... peripheral consolidations ... RheumatoidArthritis #ILD #RadiologyAssistant
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Characteristics of Peripheral ... Central Vertigo PERIPHERAL ... direction-changing on lateral ... Findings: Rarely #Peripheral ... symptoms #comparison #neurology