28 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Extension - C7, C8 (radial ... damage to the radial ... nerve in the radial ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Localizing Extraocular Movement ... • Medial Longitudinal ... Skew Deviation Casey ... ophthalmology #neurology ... #differential #
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... Weakness - Differential ... nerve palsy) ... (70-75%), Infection ... #neurology #sparing
Causes of Bradykinetic Movement Disorders - Differential Diagnosis Algorithm
Parkinson's Disease (TRAP):
• Resting Tremor
• Cogwheel Rigidity
• Akinesia/Bradykinesia
•
Movement Disorders ... - Differential ... • Axial rigidity ... • Cerebellar signs ... MovementDisorders #Neurology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... compression of the radial ... #Wrist #Drop #Radial ... PhysicalExam #clinical ... #msk #sports #neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... Illusion of Rotary Movement ... oscillopsia) • Otitis Media ... symptoms/signs, ... nystagmus - Infection
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... • Tumor • Infection ... • Peroneal • Radial ... Weakness #Sensory #Neurology ... #Differential #
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Framework If Altered Mental ... Oculomotor (3rd cranial ... nerve) Palsy: ... no neurological cause ... #diagnosis #neurology
Medial Meniscus Bucket Handle Tear - MSK Radiology
Imaging Findings:
 • Truncation of the medial meniscus on
Medial Meniscus ... Truncation of the medial ... The "double PCL sign ... Differential diagnosis ... DrvonBorstel #Medial
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • CN VI palsy ... • Neurologic ... a mass as the cause ... depress when looking medially