49 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... to the radial nerve ... axillary nerve ... Dermatomes #Myotomes #diagnosis
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
many different causes ... of Facial Nerve ... the commonest cause ... Neurology #Signs #Symptoms ... #Diagnosis
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
- Differential Diagnosis ... Abnormalities of the Optic Nerve ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
- Differential Diagnosis ... • Neurologic symptoms ... a mass as the cause ... Migraine is a diagnosis ... #Ophthalmology
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
Neuro-OphthaImoIogy ... Map - Optic Nerve ... #Differential #Diagnosis ... #Anatomy #Causes ... #Ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Ill (Oculomotor) Nerve ... IV (Trochlear) Nerve ... Skew Deviation Casey ... #Localization #ophthalmology ... #differential #diagnosis
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Is visual loss caused ... disorder of the optic nerve ... caused by inflammation ... #Rheumatology #Ophthalmology ... #Diagnosis #Algorithm
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
- Differential Diagnosis ... Tumor Cranial nerve ... the following symptoms ... • Associated symptoms ... #differential #diagnosis
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
inner retinal nerve ... optic nerve swelling ... pathophysiology #ophthalmology ... #diagnosis #signs ... #symptoms #complications
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... of the lids • Symptoms ... upper lid • Cause ... #Clinical #Diagnosis ... #Management #Ophthalmology