47 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Complement: Post-strep ... GN, Lupus Nephritis ... diagnosis #algorithm #rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Immunotactoid GN ... Cryoglobulinemic GN ... -C3 GN • Cast ... to cold IgG • Lupus ... Paraproteinemias #Hematology
Causes of Pharyngitis - Differential Diagnosis
Infectious:
 • Bacterial: Group A Strep, Group B and C Strep,
Bacterial: Group A Strep ... Group B and C Strep ... Viruses Autoimmune: Lupus ... , Behcet syndrome ... Autoinflammatory syndromes
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
Homogeneous: Systemic lupus ... , Drug-induced Lupus ... Speckled: Systemic lupus ... SLE), Sjogren's Syndrome ... ANA #patterns #rheumatology
Common causes of Acute Kidney Injury AKI - Differential Diagnosis
HEMODYNAMIC
 • Cardiac failure: Impaired forward flow,
inhibitors, hepatorenal syndrome ... Glomerulonephritides (GN ... Post-infectious GN ... , Lupus Acute Tubular
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... • Lupus (SLE): ... Antiphospholipid Antibody Syndrome ... glycoprotein I (ß2GP), Lupus ... LAC) • Sjogren Syndrome
Monoclonal Gammopathy of Clinical Significance (MGUS) - Differential Diagnosis

Neurologic-Centered:
 (+) Systemic Features: POEMS, AL amyloid, Cryoglobulinemia
capillary leak syndrome ... • Schnitzler syndrome ... immunotactoid GN ... , Type I cryo GN ... Differential #Diagnosis #hematology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
- Churg-Strauss ... - systemic lupus ... - Schnitzler syndrome ... - Sjögren syndrome ... Vessels #Diagnosis #Rheumatology
Hypertension and Altered Mental Status (AMS) - Differential Diagnosis Framework

Hypertension:
 • Hypertensive emergency
 • Hypertensive encephalopathy
• Cushing’s syndrome ... Renal: • Acute GN ... Vasculitis • Lupus ... • Serotonin syndrome
Raynaud's Syndrome - Washing off under hot water.
Raynaud phenomenon is an exaggerated vasoconstrictive response of the
Raynaud's Syndrome ... cold or emotional stress ... #Raynauds #Syndrome ... fingers #hands #rheumatology