29 results
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
severe disease & renal ... block • Sjogren syndrome ... polymyositis overlap syndrome ... • Specific for SLE ... Summary #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Splenomegaly - CTD (SLE ... Kasabach-Merritt syndrome ... Associated - SLE ... Differential #Diagnosis #hematology ... #rheumatology #
Hydroxychloroquine Serum Measurement in SLE
 • Terminal elimination half-life = 40 days ([HCQI reflects long-term intake)
Measurement in SLE ... Special cases (e.g. renal ... #Measurement #SLE ... #rheumatology # ... pharmacology #levels
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Systemic Lupus (SLE ... Demyelinating syndromes ... Abdominal pain (20%) Renal ... erythematosus #signs #symptoms ... #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 ... Oral aphthae : SLE ... • Arthritis: SLE ... management #signs #symptoms ... #rheumatology #
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
less systemic symptoms ... anti-synthetase syndrome ... Can also see mechanics ... Myositis #diagnosis #rheumatology
Monoclonal Gammopathy of Clinical Significance (MGUS) - Differential Diagnosis

Neurologic-Centered:
 (+) Systemic Features: POEMS, AL amyloid, Cryoglobulinemia
capillary leak syndrome ... • Schnitzler syndrome ... Cryoglobulinemia Renal-centered ... Differential #Diagnosis #hematology ... #oncology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation Syndrome ... lymphadenopathy • Central ... erythematosus [SLE ... Diagnosis #Management #Hematology ... #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Non-autoimmune rheumatologic ... Malignancy (e.g. hematologic ... Induced Lupus: • Symptoms ... Erythematosus #Diagnosis #Rheumatology
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Differentiation Syndrome ... Diagnosis: >3 symptoms ... Anaphylaxis, Acute Renal ... diagnosis #management #hematology ... #oncology