10 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Abduction - C8-T1 (ulnar ... aracteristic "claw hand ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Causes of Hemiplegia ... - Differential ... Diagnosis Algorithm ... Consciousness • Cranial Nerve ... contralateral extremity
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Commonly caused ... damage to peroneal nerve ... such as fibular fracture ... Dermatomes #Myotomes #diagnosis
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework ... Leg Pain: • Fracture ... #diagnosis #lower ... #extremity #msk
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... /or genital sensory ... Diagnosis: • ... weakness and sensory ... #diagnosis #causes
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Pain Causes - Differential ... Diagnosis Framework ... cutaneous nerve ... hernia • Rib fracture ... #Differential #
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... Diagnosis Framework ... compression by fractured ... Non-compressive Spinal Cord Causes ... , lower extremity
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
Rare Causes of Abdominal ... artery syndrome - Extremely ... cutaneous nerve ... #differential # ... diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often causes arthritis ... - GI tract: abdominal ... vasculitis • Sensory ... extremities, upper extremity ... Supply gut -> abdominal
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... vasculitis • Sensory ... muscle weakness • Nerves ... often causes arthritis ... gut involvement, abdominal