11 results
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Inflammatory Myopathies ... : Subacute • Pattern ... BrighamChiefs #Inflammatory ... differential #diagnosis #comparison ... #rheumatology #table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Lymphangiomyomatosis (LAM ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
Renal tubular acidosis (RTA): refers to a group of conditions all of which cause the same
which cause the same ... RenalTubularAcidosis #Features ... #Table #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Lymphangiomyomatosis (LAM ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... nodules of the same ... CTChest #Nodular #Pattern ... #Differential #Comparison ... #Table #RadiologyAssistant
Low Back Pain (Lumbago) - Common Differential Diagnosis and Patterns

Mechanical Low Back Pain:
Aching pain in the
Diagnosis and Patterns ... infectious, or inflammatory ... Commonly work related ... Differential #Diagnosis #Patterns ... #Features #Comparison
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
spinal cord • Inflammatory ... changes - Common pattern ... Myopathy: • Inflammatory ... dystrophies Work ... anti-La/SSB, anti-Sm
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
is the defining feature ... hematuria) • Inflammatory ... mononeuritis multiplex WORKUP ... • IF staining patterns
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... cutaneous DIL), anti-Sm ... • Immunologic Workup ... druginduced #lupus #sle #comparison ... #table #rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... test for Smith (Sm ... for All Types of Inflammatory ... RF (if clinical features ... Arthritis #laboratory #workup