11 results
Superior Oblique Myokymia 
Eye movement disorder where the superior oblique twitches periodically causing jumping of a
Eye movement ... It is probably caused ... the trochlear nerve ... (CN IV) at the ... #trochlear #CN4
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN ... Palsy • CN IV ... palsy • CN VI ... ophthalmology #neurology #differential ... #diagnosis #ocular
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • CN VI palsy ... for ptosis with CN ... a mass as the cause ... #Causes #Ophthalmology
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Cord Injury by Nerve ... Motor Reflex C4 ... Radial Antecubital ... NerveRoots #Levels #differential ... #diagnosis #Neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... • Suspect in movement ... Demyelinating disease caused ... of the abducens nerve ... #Infections #differential
Hemimasticatory Spasm on Physical Exam

Hemimasticatory spasm is a disorder of the trigeminal nerve → involuntary jaw
the trigeminal nerve ... Myokimia will cause ... such gross movement ... clinical #cheek #CN5 ... #video #neurology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... Diagnosis: • CN ... abnormal extraocular movements ... dissociation • Other causes ... @neudrawlogy #Adies
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... Diagnosis Framework ... (CN 8) ... cause unknown) ... #Diagnosis #otology
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
Tongue Deviation caused ... nerve receives ... this rule are CN ... the preserved movements ... palsy #clinical #video
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Causes of Hypotonic ... Diagnosis Algorithm ... Decreased LOC, Axial ... Hemorrhage • CNS ... Peripheral Weakness - Nerves