14 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
L2, L3, L4 • Ankle ... • Cauda Equina Syndrome ... Commonly caused ... #neurology #sensory ... #motor #leg #physicalexam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... and Myotomes Motor ... #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
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
Levels Spinal Root Sensory ... Motor Reflex C4 ... None T7-T12 See Dermatomes ... Anterior Medial Thigh Hip ... #Neurology #Spine
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
and/or genital sensory ... - Emergency Causes ... region (S2-S4 dermatomes ... Imaging studies: • MRI ... #causes #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
bouts of HTN Diagnostic ... , motor, or autonomic ... Transverse Myelitis Diagnosis ... • Infectious causes ... #management #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... syphilis, and HIV ... lesion - Upper motor ... #differential #diagnosis ... #neurology
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
Non-inflammatory Causes ... pachymeningitis • HIV ... neuropathy (LHON) plus MRI ... consistent with MS ... #neurology #noninflammatory
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... Upper Motor Neuron ... signs - Lack of sensory ... EMG) studies • MRI ... #neurology
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
the follow up video ... MRI was ordered ... the hospital, diagnosed ... #PhysicalExam # ... ophthalmology #neurology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
other potential causes ... The MRI findings ... HZO #clinical #video ... ophthalmology #physicalexam ... #neurology