13 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Conditions Erb's Palsy ... hand" ± Horner Syndrome ... nerve in the radial ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Vision - Differential ... • CN VI palsy ... Ill palsy ... a mass as the cause ... #DoubleVision #Differential
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
PalsyCN IV ... palsyCN VI ... One-and-a-half Syndrome ... ophthalmology #neurology #differential ... #diagnosis #ocular
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... neuro-ophthalmologic finding of diplopia ... Miller-Fisher syndrome ... Diplopia #Differential ... #Diagnosis #Causes
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
- Differential ... Brain Stem • Diplopia ... Consciousness • Cranial Nerve ... Findings: ipsilateral facial ... Brown-Sequard Syndrome
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Demyelinating disease caused ... hemianopia and diplopia ... hearing loss, palsy ... of the abducens nerve
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
- 50%: Ptosis, diplopia ... life-threatening Differential ... Brain stem/Cranial nerve ... myasthenia Diagnosis ... - Repetitive nerve
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) ... II ○ Susac’s syndrome
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
spinal cord and nerve ... Reconstitution Inflammatory Syndrome ... neurological symptoms • Caused ... #Tuberculosis #diagnosis ... #differential #
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
status changes with focal ... pupil with third nerve ... palsy - Tentorial ... #differential # ... diagnosis