6 results
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... • Systemic lupus ... lupus erythematosus ... with leukopenia, anemia ... #Rheumatology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... Arthritis 69% - Malar ... - Hemolytic anemia ... sclerosis, Still's disease ... #differential #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... (NPSLE): • May ... Photosensitivity • Malar ... lymphopenia, low PLT • Anemia ... Chronic B-cell activation
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
• Heavy Chain disease ... myopathy • Anti MAG ... (-) hemolytic anemia ... to cold IgG • Lupus ... Sneddon-Wilkinson disease
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... affected joint • Systemic ... lupus erythematosus ... the presence of anemia ... diagnosis #testing #Rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)

High mortality without prompt recognition and management. HLH is a critical diagnostic consideration in
of the immune system ... ▪ Autoimmune diseases ... (often termed MAS-HLH ... - Cytopenias (anemia ... Diagnosis #Management #Hematology