11 results
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... hair follicles -> causes ... Livedo Reticularis, Vasculitis ... Manifestations #pathophysiology ... #diagnosis #signs
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
(SLE) General: ... Photosensitivity, Butterfly rash ... , Vasculitis, Purpura ... pain (20%) Renal disease ... erythematosus #signs
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... ANCA-associated vasculitis ... Malignancy (e.g. hematologic ... vein thrombosis Hematologic ... La, anti-Jo-1, SCL
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
) • Systemic lupus ... in drug-induced SLE ... scleroderma) - Anti-Scl ... ANCA-Associated Vasculitis ... Renal-limited vasculitis
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... Post-strep GN, Lupus ... involvement: Anti-GBM Disease ... Glomerulonephritis #Vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... mucositis - Rash ... such as systemic lupus ... purpura: strong sign ... , and SLE) • Urinalysis
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
• Systemic lupus ... Petechial or purpuric rash ... SJIA], systemic lupus ... erythematosus [SLE ... Diagnosis #Management #Hematology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
, such as SLE, atherosclerotic ... purpura: Strong sign ... , mucositis • Rash ... tract, and often causes ... Differential #Diagnosis #Rheumatology
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
with systemic disease ... Episcleritis Signs ... Causes: - Idiopathic ... , breast CA - Hematologic ... ’s syndrome - Lupus
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 ... some time, let’s see ... #workup #hematology