13 results
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... Positive in 60-80% of cases ... 60-80% - Low ... : Chronic disease ... #Summary #rheumatology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Differential Diagnosis Algorithm ... Low Mean Corpuscular ... #Anemia #MCV #Classification ... #Causes #Hematology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low ... Skin Disease Classification ... Malignancy (e.g. hematologic ... , lymphopenia, low ... with Lupus: • Chronic
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
in >90% - Low ... Discontinuation of causal ... Systemic Lupus Erythematosus ... 60-80% - Low ... : Chronic disease
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Differential Diagnosis Algorithm ... lichenification (chronic ... Very low concentrations ... Differential #Diagnosis #Algorithm ... #causes
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Differential Diagnosis Algorithm ... • Burns • Diarrhea ... JAK-2 Positive - Low ... #Causes #Hematology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... • Infectious diarrhea ... DDX - Other causes ... Malignancies • Chronic ... hypogammaglobulinemia #immunology #hematology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... factor level • Low ... systemic lupus erythematosus ... diagnosis #types #classification
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Differential Diagnosis Algorithm ... an underlying cause ... Better call hematology ... levels: realllly low ... normal/high - Chronic
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... tract, and often causes ... • Complement (Low ... vasculitis, and SLE ... #classification