13 results
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
usually IgG) (e.g. lupus ... Intrinsic RBC Defects ... thalassemias), Membrane defects ... Extravascular #Causes #differential ... #diagnosis #hematology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Lymphadenopathies 7% - Hemolytic ... autoantibodies #signs ... #symptoms #mimickers ... #differential # ... rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Restrictive lung defect ... pain (20%) Renal disease ... erythematosus #signs ... #symptoms #diagnosis ... #rheumatology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... • Membrane defects ... Causes: • Liver disease ... , spider/snake bites
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
technique used to detect ... context of other symptoms ... , Drug-induced Lupus ... ANA #patterns #rheumatology ... #diagnosis #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
vasculitis) - Affects ... such as systemic lupus ... Presentation - Systemic Symptoms ... purpura: strong sign ... #diagnosis #rheumatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
meningitis), MCC CNS symptoms ... ) Differential Diagnosis ... Syndrome #diagnosis #management ... #signs #symptoms ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Presentation: Systemic Symptoms ... purpura: Strong sign ... • Progressive symptoms ... impairment, neurologic deficits ... #Diagnosis #Rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
most frequently affects ... age, however the disease ... Diagnosis: HLH signs ... and symptoms can ... Lymphohistiocytosis #diagnosis #management
Polymyalgia Rheumatica (PMR) Diagnosis and Management Summary

WHAT?
 • Polymyalgia rheumatica (PMR) is a common systemic inflammatory
Diagnosis and Management ... normal and can help differentiate ... and long head biceps ... PMR #Diagnosis #Management ... #Rheumatology