11 results
Peripheral Neuropathy - Diagnostic Schema and Differential Diagnosis

Hereditary
Common Causes
Rapid Onset
Subacute/Chronic Onset
 - Multifocal
 - Focal
 -
Peripheral Neuropathy ... Multifocal - Focal ... - Diffuse ... Diagnosis #Schema #Algorithm ... #Causes #neurology
Causes of Diffuse and Localized Lymphadenopathy - Differential Diagnosis Algorithm
 • Reactive (Inflammatory / Infectious)
 •
Causes of Diffuse ... Differential Diagnosis Algorithm ... Metastatic) #Diffuse ... #Focal #Localized ... #Causes #Hematology
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
- Nociceptive/Neuropathic ... localized, crampy, diffuse ... longer duration Neuropathic ... Differential #Diagnosis #Algorithm ... #Causes
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... Differential Diagnosis Algorithm ... • Acne • Allergy ... Hodgkin's Lymphoma #Diffuse ... #Causes #Hematology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
and Focal) Differential ... Diagnosis Algorithm ... DIFFUSE Scarring ... Differential #Diagnosis #Algorithm ... #causes
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low Complement ... Idiopathic • Normal Complement ... : IgA nephropathy ... differential #diagnosis #algorithm
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
lgE causes mast-cell ... antigens, leading to complement ... they activate complement ... chain causing local ... reactions #types #allergy
Acute Pharyngitis: Differential Diagnosis
Infectious:
 • Respiratory viruses (25-45%)
 • Group A Strep (5-15%)
 • Other bacteria:
Treponema pallidum • Diffuse ... Noninfectious: • Allergic ... to dry air • Vocal ... Differential #Diagnosis #causes
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
1) Focal (involving ... lobe of lung) 2) Diffuse ... WHAT ARE COMMON CAUSES ... NTM, Fungal) 4) Allergic ... #differential #causes
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... weakness - Nerves: neuropathy ... against MPO • Complement