22 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
• Progressive muscular ... Neuropathy • Spinal Muscular ... Lambert-Eaton Myasthenic Syndrome ... Polymyositis • Duchenne Muscular ... Dystrophy • Statin
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Guillain-Barre syndrome ... Lambert Eaton Syndrome ... poisoning, Scorpion sting ... Mitochondrial myopathy, Muscular
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
capillary leak syndrome ... Fanconi, crystal-storing ... Hypergammaglobulinemic macular ... disease (Subcorneal pustular ... (Thrombosis in vascular
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... Paraneoplastic syndrome ... toxins: Steroids, Statins ... myositis • Genetic: Muscular ... myopathies, the muscular
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
severe burns, third-spacing ... cardiac tamponade, Vascular ... Distributive (↓ Vascular ... anaphylaxis, release syndrome
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
Abdominal compartment syndrome ... , Vascular compression ... Losses, Third Spacing
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
Encephalopathy Syndrome ... Clinico-Radiological Syndrome ... Imaging Patterns ... cortical lesions • Vascular ... Testing: • Imaging
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
SAPHO Syndrome Summary ... SAPHO syndrome is ... • Pustular skin ... pustulosis, pustular ... changes: CRP, ESR • Imaging
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 ... lumbar stenosis • Vascular ... studies (PVR) Imaging
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
laboratory tests + imaging ... Aphaso-apraxo-agnosia syndrome ... Frontal atrophy Vascular