19 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Etiology: • Vascular ... Disruptions in vascular ... Splenomegaly - CTD (SLE ... Associated - SLE ... #rheumatology #
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Systemic Lupus Erythematosus ... (SLE): Musculoskeletal ... Myopathy (Also caused ... Erythematosus #SLE ... Complications #pathophysiology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... ANCA associated vasculitis ... (RA), Systemic lupus ... erythematosus (SLE ... Differential #Diagnosis #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
cases, drug-dependent ... Discontinuation of causal ... management of SLE ... #sle #comparison ... #table #rheumatology
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
Erythematosus (SLE ... Disease, PRES Pathophysiology ... autoantibodies that will cause ... Erythematosus #SLE ... CNS #neurology #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... ANCA-associated vasculitis ... Non-autoimmune rheumatologic ... • Mesenteric vasculitis ... Erythematosus #Diagnosis #Rheumatology
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... hair follicles -> causes ... Livedo Reticularis, Vasculitis ... #SLE #Mucocutaneous ... Manifestations #pathophysiology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... Vascular Sludging ... (e.g. systemic lupus ... classification #rheumatology
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 ... Glomerulonephritis #Vasculitis ... diagnosis #algorithm #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
) • Systemic lupus ... in drug-induced SLE ... ANCA-Associated Vasculitis ... Renal-limited vasculitis ... antibodies #diagnosis #rheumatology