19 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 ... spared in this injury ... Myotomes #diagnosis #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Medial Longitudinal ... Fasciculus (MLF) Iniury ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
nerve injury ... nerve injury ... • Thus a PIN palsy ... nerve (or PIN) palsy ... Anatomy #diagnosis #neurology
Radial Nerve Palsy: Note inability of patient to extend right wrist.
Charlie Goldberg, M.D. - UCSD Catalog
Radial Nerve Palsy ... Goldberg, M.D. - UCSD ... Images #Clinical #Photo ... #RadialNerve #Palsy ... #Wrist #UCSDH
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... compression of the radial ... sleeping as in this case ... #Wrist #Drop #Radial ... #msk #sports #neurology
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
endocarditis, in this case ... of an infected radial ... Photo credit, Josh ... Goldberg, M.D. - UCSD ... #Endocarditis #UCSDH
Left 6th Cranial Nerve Palsy: Left eye unable to move laterally beyond midline. In this case,
Left 6th Cranial ... Nerve Palsy: Left ... dysfunction was caused ... Images #Clinical #Photo ... #Abducens #UCSDH
Sixth Left Cranial Nerve Palsy: Left eye cannot move laterally beyond midline. In this case, caused
Sixth Left Cranial ... Nerve Palsy: Left ... In this case, caused ... Images #Clinical #Photo ... #Abducens #UCSDH
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... • Neurologic ... a mass as the cause ... depress when looking medially ... #Ophthalmology
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 ... differential #diagnosis #neurology