14 results
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Pupil - Differential ... Oculomotor (3rd cranial nerve ... ) Palsy: • Brain ... no neurological cause ... #diagnosis #neurology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Nerve • Ptosis ... inferior oblique • Dilated ... #Cranial #neurology ... #diagnosis
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Regular and mildly dilated ... : • CN Ill Palsy ... dissociation • Other causes ... #PhysicalExam # ... neurology #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... a mass as the cause ... large/unreactive pupil
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
to the radial nerve ... axillary nerve ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
to respond to diluted ... suggest oculomotor nerve ... palsy. ... ophthalmology #physicalexam ... #neurology
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
 Most common cause ... Differential diagnosis ... weakness fixed dilated ... pupils, food/wound ... prominent cranial nerve
Bell's Palsy - Diagnosis and Management Summary - GrepMed Handbook

Acute Idiopathic Unilateral Facial Nerve (CN7) Palsy
Presentation:
Bell's Palsy - Diagnosis ... Unilateral Facial Nerve ... , Lyme, facial nerve ... CNS inflammatory cause ... #Treatment #Neurology
Extrapulmonary manifestations of COVID-19
 • Neurologic: Headaches, Dizziness, Encephalopathy, Guillain-Barré, Ageusia, Myalgia, Anosmia, Stroke
 • Renal:
of COVID-19 • Neurologic ... vein thrombosis, Pulmonary ... embolism, Catheter-related ... ischemia, Acute cor ... Extrapulmonary #Diagnosis
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
consistent with a diagnosis ... experience, the cause ... decompress the spinal cord ... how the right pupil ... #neurology #Anisocoria