19 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Syndrome Wrist drop ... spared in this injury ... night palsy" is a common ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Respiration None C5 Radial ... Reflex L2 Anterior Medial ... Cremasteric Reflex L3 Medial ... Extension None L4 Medial ... #diagnosis #Neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Nerve palsy • Medial ... Fasciculus (MLF) Iniury ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... anesthesia (more commonly ... anesthesia (more commonly ... #differential # ... diagnosis #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Diplopia - Double Vision ... - Differential ... • Neurologic ... depress when looking medially ... #Ophthalmology
Seesaw Nystagmus 

Sawtooth or seesaw nystagmus is an unusual but characteristic type of nystagmus. Typically there
pendular shape is commonly ... nucleus of the medial ... concept suggests an injury ... We have varied causes ... clinical #video #ophthalmology
Cortical Desmoid - MSK Radiology
Imaging Findings:
 • Circumscribed, small cortically based Tl -hypointense and T 2-hyperintense
attachment site of the medial ... related to avulsive injury ... - Along the medial ... attachment of the medial ... Differential diagnosis
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 ... clinical #video #ophthalmology ... #neurology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
and Headache - Differential ... Traumatic brain injury ... neuralgia: - Common ... #diagnosis #ophthalmology ... #Neurology
Subchondral Insufficiency Fracture
Imaging Findings:
 • Circle demarcating the region of edema within the medial femoral condyle.
edema within the medial ... signal within the medial ... • Most common ... of the medial femoral ... Differential diagnosis