20 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... of Leg Pain: ... of Leg Pain: ... Causes of Leg Pain ... #pain #differential
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... aracteristic "claw hand ... " ± Horner Syndrome
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... - Low back pain ... Commonly caused ... damage to peroneal nerve
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
- Differential ... Consciousness • Cranial Nerve ... contralateral extremity ... Brown-Sequard Syndrome ... sensory loss to pain
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... paralysis of all extremity ... Reflexes: Arms or legs ... or feet • Pain ... #diagnosis #management
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 ... - Emergency Causes ... #differential # ... diagnosis #causes ... #neurology
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
Rare Causes of Abdominal ... - Extremely lean ... persons pain. nausea ... Abdominal cutaneous nerve ... #differential #
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Causes of spinal ... • Extrinsic Causes ... - Leg weakness ... #lesions #differential ... #diagnosis #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
weakness, arms > legs ... life-threatening Differential ... - Repetitive nerve ... Gravis #diagnosis #management ... #neurology
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
- Ensure leg ... nerve damage in ... • Syndrome caused ... - Intense pain ... days, the local pain