106 results
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
Bell's palsy There ... many different causes ... the commonest cause ... Loss of Corneal Reflex ... #Neurology #Signs
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... cranial nerve) Palsy ... hemorrhage, SAH, tumor ... no neurological cause ... differential #diagnosis #neurology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... Diagnosis: • CN Ill Palsy ... dissociation • Other causes ... trauma/orbital tumor ... #PhysicalExam #neurology
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... - Intracranial tumor ... of facial nerve palsy ... Unilateral: Bell's Palsy ... #neurology #sparing
Physical exam findings of various ocular palsies; image courtesy of the BMJ

R 3rd nerve palsy
R 4th
findings of various ocular ... R 4th nerve palsy ... #Ocular #CranialNerve ... #Palsies #Palsy ... CNIII #CNIV #CNVI #Neurology
Bell's Phenomenon (Palpebral-Oculogyric Reflex) on Physical Exam

Upward movement of the eyeball when the eyelids are forcefully
Palpebral-Oculogyric Reflex ... patient with Bell's palsy ... Palpebral #Oculogyric #Reflex ... clinical #video #neurology ... #palsy
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... oblique • Dilated Pupil ... innervation to pupil ... #CNIII #CN3 #Palsy ... Nerve #Cranial #neurology
Argyll-Robertson Pupil on Physical Exam
Small (myotic), irregular pupil that do not react to light but do
Argyll-Robertson Pupil ... myotic), irregular pupil ... fibers of the light reflex ... Argyll #Robertson #Pupil ... clinical #video #neurology
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
left 6th nerve palsy ... Caused by a ... retraction #nystagmus #ocular ... clinical #video #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Oculomotor) Nerve Palsy ... Trochlear) Nerve palsy ... Skew Deviation Casey ... ophthalmology #neurology ... differential #diagnosis #ocular