40 results
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
granulomatosis - microscopic ... Churg-Strauss syndrome ... #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood ... Smear Analysis ... cells: Sickle cell disease ... #Smear #Analysis ... #hematology #microscopy
Small Vessel Vasculitides
 • Granulomatosis with polyangiitis - Granulomatous manifestations (e.g., nasal crusting, destructive sinusitis, pulmonary
Small Vessel Vasculitides ... retroorbital mass) • Microscopic ... Interstitial lung disease ... and Sjogren's syndrome ... #diagnosis
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis ... Microscopic polyangiitis ... #diagnosis #table ... #rheumatology #
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... Associated: - Microscopic ... : • Behcet Disease ... • Cogan syndrome ... #dermatology #rheumatology
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
urine • 1ml blood ... basement membrane disease ... of GN or vasculitis ... of glomerular disease ... #renal #urine #blood
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
PR3-ANCA): • Microscopic ... pulses, bruis, or blood ... Large Vessel: Blood ... Dx: GPA, EGPA, microscopic ... #rheumatology #
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
Pathologic Red Blood ... and Associated Diseases ... Morphologies #Key #Atlas #Microscopy ... #Pathology #Hematology ... #Diagnosis #Dyspmorphic
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
Peripheral blood ... and laboratory diagnosis ... hemolytic #anemia #Hematology ... #Pathology #Smear ... #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