9 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
artery aneurysms Nerve ... Causes of Leg Pain ... Spinal stenosis/nerve ... Infections causing nerve ... Paralysis 4) Paresthesia
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Cauda Equina Syndrome ... Causes: • Large ... Incontinence • Saddle Anesthesia ... damage to sacral nerves ... #CaudaEquina #Syndrome
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 ... • S - Saddle anesthesia ... • P - Pain ... - Emergency Causes ... differential #diagnosis #causes
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... - Low back pain ... saddle (perineal) anesthesia ... Commonly caused ... damage to peroneal nerve
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
irreversible muscle and nerve ... • Syndrome caused ... - Intense pain ... days, the local pain ... progresses to anaesthesia
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... and peripheral nerves ... • Cogan Syndrome ... , testes -> pain ... differential #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
muscle weakness • Nerves ... tract: Abdominal pain ... tract, and often causes ... involvement, abdominal pain ... Differential #Diagnosis #Rheumatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Sjogren's Syndrome ... Hypocomplementemia • Can cause ... myelopathy, cranial nerve ... lubricants • Pharmacologic ... #Rheumatology #
Clarkson’s Disease - Capillary leak syndrome
Epidemiology: Roughly 150 published cases, Median age 50 years, No sex
Capillary leak syndrome ... 150 published cases ... tissues: Myalgia, paresthesia ... , abdominal pain ... timeline #treatment #rheumatology