12 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
damage to the radial ... nerve in the radial ... in the median nerve ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsyMedial ... One-and-a-half Syndrome ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... • Thus a PIN palsy ... palsy recovers there ... #Nerve #Anatomy ... #diagnosis #neurology
Bell's Palsy
Bell’s Palsy is a damage, acute weakness, or paralysis of the Facial nerve (7th CN),
nerve (7th CN), ... an identifiable cause ... nerve gets damaged ... #neurology #anatomy ... #pathophysiology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... depress when looking medially ... #Ophthalmology
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
formation) and MLF (medial ... The most common causes ... of this are tumors ... clinical #video #ophthalmology ... #neurology
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
mastoid air cells are ... Inferior through medial ... nerve palsy • ... hearing loss, nausea ... #Mastoiditis #pathophysiology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Guillain-Barre Pathophysiology ... Can begin in arms ... Absent Reflexes: Arms ... management #treatment #neurology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
• Significant cause ... anterior chambers Anatomic ... leads to optic nerve ... ClosedAngle #Glaucoma #pathophysiology ... #ophthalmology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... all extremity, facial ... the underlying pathophysiology ... diagnosis #management #neurology