19 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
• Mexion - C8 (median ... opp - C8, T1 (median ... Conditions Erb's Palsy ... Saturday night palsy ... sensory #motor #arm #physicalexam
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... Framework If Altered Mental ... cranial nerve) Palsy ... no neurological cause ... Fixed #Dilated #Pupil
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Oculomotor) Nerve Palsy ... Trochlear) Nerve palsy ... • Medial Longitudinal ... Skew Deviation Casey ... differential #diagnosis #ocular
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... mildly dilated pupil ... Diagnosis: • CN Ill Palsy ... dissociation • Other causes ... #PhysicalExam #
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
left 6th nerve palsy ... Caused by a ... retraction #nystagmus #ocular ... #physicalexam #
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Nerve Palsy on ... sleeping as in this case ... Saturday night palsy ... #Nerve #Palsy # ... PhysicalExam #clinical
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... a mass as the cause ... large/unreactive pupil ... depress when looking medially
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
Her ocular exam ... In this case, the ... than 3mm in this case ... oculomotor nerve palsy ... ophthalmology #physicalexam
Persistent Pupillary Membrane (PPM) on Slit Lamp Ocular Examination

This membrane would be a remainder of the
) on Slit Lamp Ocular ... large enough to cause ... Pupillary #Membrane #Pupil ... #Ocular #PhysicalExam
Strabismus - Ocular Misalignment - Differential Diagnosis Algorithm
Phoria:
 • Latent deviation
 • Symmetrical corneal light reflex,
Strabismus - Ocular ... Esophoria (eye moves medial ... large/unreactive pupil ... #Strabismus #Ocular ... Diagnosis #Algorithm #Causes