28 results
Upper Extremity Nerve Pathologies 

 • Axillary Nerves
 • Musculocutaneous Nerve
 • Radial Nerve
 • Median
Upper Extremity Nerve ... • Radial Nerve ... • Ulnar Nerve ... #Pathologies #differential ... #diagnosis #Neuropathy
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... • Claw Hand - Ulnar ... Nerve Injury • ... Injuries #Anatomy #Differential ... #Diagnosis #MSK
Critical and Emergent Causes of Neuromuscular Weakness
CRITICAL DIAGNOSES 
 - Cerebral cortex or subcortical 
 -
Neuromuscular Weakness ... - Peripheral nerve ... - Peripheral nerve ... Neuromuscular #Weakness ... #Differential #
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
of Peripheral Weakness ... Sensory Changes - Differential ... Diagnosis Algorithm ... Carpal Tunnel • Ulnar ... #Diagnosis #Algorithm
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial Weakness ... - Differential ... Diagnosis Algorithm ... (2% of facial nerve ... #Differential #
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Tumor • Motor Nerves ... multiplex, Phrenic nerve ... #Causes #differential ... #diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... to the radial nerve ... anesthesia and deltoid weakness ... Dermatomes #Myotomes #diagnosis
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Diagnosis Framework ... Mononeuropathy: Nerve ... #Differential # ... Diagnosis #neurology
Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
Leukocytosis - Differential ... Diagnosis Algorithm ... bleeding, fatigue/weakness ... #Diagnosis #Algorithm ... #hematology #WBC
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
symmetric muscle weakness ... symmetric muscle weakness ... Myopathies #myopathy #differential ... #diagnosis #comparison ... #rheumatology