18 results
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
granulomatosis - microscopic ... Churg-Strauss syndrome ... Vasculitis #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
and Associated Diseases ... Morphologies #Key #Atlas #Microscopy ... #Pathology #Hematology ... #Diagnosis #Dyspmorphic ... Pathologic Basis of Disease
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
La) - Sjogren's syndrome ... Microscopic polyangiitis ... Goodpasture's syndrome ... #diagnosis #table ... #rheumatology #
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... Associated: - Microscopic ... Vasculitis: • Behcet Disease ... • Cogan syndrome ... #rheumatology #
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
cases • Sjögren syndrome ... Vasculitis: • Microscopic ... Antineutrophil #antibodies #diagnosis ... #rheumatology # ... diseases
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Using fluorescence microscopy ... SLE), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... ANA #patterns #rheumatology ... #diagnosis #differential
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
anemia, Chronic disease ... deficiency, Liver Disease ... Uremia, Liver disease ... #differential #diagnosis ... #hematology #microscopy
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
polyangiitis (GPA), microscopic ... involvement - PR3>MPO Microscopic ... PR3 Anti-GBM disease ... PANCA #MPO #PR3 #Diagnosis ... #Rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Differential Diagnosis ... Polyarteritis nodosa • Microscopic ... • Goodpasture syndrome ... #rash #diagnosis ... #rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• Autoimmune diseases ... Labs/Diagnosis: ... vasculitis - GPA, EGPA, microscopic ... Cryoglobulins #diagnosis ... classification #rheumatology