11 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
) • Systemic lupus ... Vasculitis: • ... Renal-limited vasculitis ... #antibodies #diagnosis ... #rheumatology #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Diagnosis: Systemic ... lupus erythematosus ... LFT • ESR • ANA ... differential #diagnosis ... #rheumatology #
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
(C-ANCA): GPA > ... > eGPA • MPO-ANCA ... (P-ANCA): eGPA, ... #Vasculitis #differential ... #rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... Nodosa (PAN), ANCA ... associated vasculitis ... lupus erythematosus ... #Diagnosis #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
lupus erythematosus ... lupus erythematosus ... lupus erythematosus ... : Lupus (SLE), Systemic ... #rheumatology #diagnosis
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
DDX: • ANCA (Antineutrophil ... • Vasculitis ... lupus erythematosus ... #rheumatology # ... vasculitis
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Diagnosis: • ANCA-associated ... vasculitis, rheumatoid ... • Mesenteric vasculitis ... #Diagnosis #Rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
• Ig A vasculitis ... (MIXED) • ANCA ... HCV, HBV Not Vasculitis ... #Diagnosis #hematology ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... as SLE, atherosclerotic ... #Differential #Diagnosis ... #Rheumatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
overlaps with RA, SLE ... ) • Cutaneous vasculitis ... Vasculitis: • ... 7%, Cryoglobulinemia ... Sjogrens #Syndrome #Rheumatology