54 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... disease, decrease ... test, ANA (e.g., SLE ... disease), HBsAg ... #Workup #hematology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Diagnosis and Management ... • Immunologic Workup ... Positive in 60-80% of cases ... : Chronic disease ... #Summary #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Splenomegaly - CTD (SLE ... deficiency • Liver ... Associated - SLE ... Differential #Diagnosis #hematology ... #rheumatology #
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... • Immunologic Workup ... : Chronic disease ... comparison #table #rheumatology ... #diagnosis #management
Hydroxychloroquine Serum Measurement in SLE
 • Terminal elimination half-life = 40 days ([HCQI reflects long-term intake)
Measurement in SLE ... malabsorption) if ... #Measurement #SLE ... #rheumatology # ... levels #lupus #management
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
, ↓ Fibrinogen level ... : SLE+++, Adult-onset ... Still disease, ... Lymphohistiocytosis #diagnosis #management ... treatment #summary #rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... Studies in Rheumatic Diseases ... #Rheumatic #Disease ... Arthritis #laboratory #workup ... diagnosis #testing #Rheumatology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
): SS, SC, SE, Sβ ... RBC inclusions - If ... bartonella (oroya fever ... Diagnosis #Algorithm #workup ... #hematology #testing
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... • Pancreatic Disease ... Disease #Macrocytic ... Diagnosis #Algorithm #Causes ... #Hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
highly inflammatory disease ... of underlying disease ... erythematosus [SLE ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology