21 results
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... Diagnosis: • CN Ill Palsy ... dissociation • Other causes ... #Pupil #PhysicalExam ... #neurology #ophthalmology
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Weakness - Differential ... (2% of facial nerve ... palsy) - Unilateral ... : Bell's Palsy ( ... #neurology #sparing
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Examination Left hand ... sleeping as in this case ... #Palsy #PhysicalExam ... clinical #video #orthopedics ... #msk #sports #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Palsy • CN IV ... Iniury • One-and-a-half ... Skew Deviation Casey ... ophthalmology #neurology ... #differential #
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
grip weakness caused ... #video #neurology ... #physicalexam # ... msk #orthopedics ... #sports #hand
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Conditions Erb's Palsy ... Saturday night palsy ... axillary nerve ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Oculomotor (3rd cranial nerve ... ) Palsy: • Brain ... hemorrhage, SAH, tumor ... no neurological cause ... #diagnosis #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... a mass as the cause
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
Adie’s Tonic Pupil ... suggest oculomotor nerve ... palsy. ... ophthalmology #physicalexam ... #neurology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
equal in light and ... • Oculomotor Nerve ... pilocarpine • Tonic (Adie's ... • Trauma • Tumor ... Diagnosis #Algorithm #Causes