16 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... • Cauda Equina Syndrome ... #Myotomes #diagnosis ... #neurology #sensory ... #motor #leg #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
Spinal Cord Injury ... None T7-T12 See Dermatomes ... Anterior Medial Thigh Hip ... #differential #diagnosis ... #Neurology #Spine
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
- Spinal Cord Syndromes ... Brown-Séquard Syndrome ... Syndrome: • Etiology ... #syndromes #lesions ... #neurology
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup ... - Differential Diagnosis ... Infiltrative disorders, HIV ... metastases, Hungry bone syndrome ... #Algorithm #nephrology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Cauda Equina Syndrome ... Cauda Equina Syndrome ... - Cauda equina syndrome ... of Cauda Equina Syndrome ... #causes #neurology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Kidney Injury - AKI Workup ... , HIV serology, ... Abdominal compartment syndrome ... • Cardio-renal syndrome ... #nephrology #causes
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
Horner's Syndrome ... consistent with a diagnosis ... of Horner's syndrome ... anterior_seg_rocks #Horners #Syndrome ... #neurology #Anisocoria
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... of the spinal cord ... Paraneoplastic syndrome ... Lambert-Eaton - Isaacs' syndrome ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential Diagnosis ... Viral: VZV, HSV, HIV ... MCTD, Sjogren syndrome ... spinalcord #disorders #diagnosis ... #neurology #differential