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

Immune Complex Mediated (granular staining):
pathophysiologic causes ... Complement: Post-strep GN ... , Lupus Nephritis ... Purpura Anti-GBM antibodies ... #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... Antibody) and ANCA ... ) • Systemic lupus ... drug-induced SLE) • Systemic ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
proteinuria, Rapidly progressing ... purpura: Strong sign ... (rapidly progressive ... often causes arthritis ... Differential #Diagnosis #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
proteinuria, rapidly progressing ... GN • New pulmonary ... often causes arthritis ... purpura: strong sign ... ) pattern: antibodies
Antiphospholipid Syndrome (APLS) Testing - Hypercoagulable Workup Algorithm
INDICATIONS FOR TESTING:
 • Vascular thrombosis
Hypercoagulable Workup Algorithm ... chromosomal causes ... excluded Testing: • Lupus ... Hypercoagulable #Workup #Algorithm ... #diagnosis #hematology
Acute Retroviral Syndrome
Acute Retroviral Syndrome is the symptomatic presentation of acute human immunodeficiency virus infection

 •
Central nervous system ... Detects both HIV antibody ... HIV-1 or HIV-2 antibodies ... IgM-sensitive HIV-1 antibody ... slow HIV disease progression
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
• Bilateral signs ... IgG index • Progression ... sclerosis, NMOSD, MOG antibody ... glycoprotein (MOG) antibody ... Antiamphiphysin antibodies
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
RP-ILD), dermato-rheumatologic ... Gottron sign) ... • Shawl sign • ... • Conduction system ... statins - probably caused
Anti-NXP-2 Dermatomyositis

What?
DM with generalized subcutaneous edema
Pts have more myalgias, more severe weakness, and an increased prevalence
Antibodies targeting ... Manifestations: • Progressive ... Muscle atrophy may cause ... levels • NXP-2 antibody ... diagnosis #management #rheumatology