100 results
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Churg-Strauss syndrome ... - Goodpasture syndrome ... - Schnitzler syndrome ... - Sjögren syndrome ... Vessels #Diagnosis #Rheumatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... : Acute blood loss ... , Vasculitides, ... IBD, Celiac disease ... Diagnosis #Algorithm #hematology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
biliary cirrhosis (PBC ... La) - Sjogren's syndrome ... c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis ... diagnosis #table #rheumatology
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
Pathologic Red Blood ... and Associated Diseases ... cell, Other RBC ... Microscopy #Pathology #Hematology ... Pathologic Basis of Disease
Vasculitis Involving the Skin - Differential Diagnosis Framework

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

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Bone marrow disease ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... Differential #Diagnosis #hematology ... #rheumatology #
VEXAS (Vacuoles, E1 enzyme, X-linked, Autoinflammatory, Somatic) Syndrome
Clinical Syndrome:
 • Common Clinical Features: alveolitis, ear and
thromboembolic disease ... recurrent fevers, vasculitis ... • Hematologic ... including peripheral blood ... Autoinflammatory #Somatic #rheumatology
Rheumatoid Arthritis Summary
MCP and PIP Involvement, Spares DIP, Carpal Tunnel, Sicca Syndrome, Epi/Scleritis, Heart Disease, Rheumatoid
Tunnel, Sicca Syndrome ... Scleritis, Heart Disease ... , Rheumatoid Vasculitis ... Nodules, Pulmonary Disease ... RA #diagnosis #rheumatology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Artifact (redo CBC ... disorders • Celiac disease ... Non malignant hematologic ... effect following treatment ... Algorithm #Causes #Hematology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
• Cogan Syndrome ... pulses, bruis, or blood ... Large Vessel: Blood ... Lab Tests: • CBC ... differential #diagnosis #rheumatology