9 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 ... Purpura Anti-GBM antibodies ... #differential #diagnosis ... #algorithm #rheumatology
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
acute ischemic disorder ... • Cephalic symptoms ... #Rheumatology # ... Ophthalmology #Diagnosis ... #Algorithm
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... context of other symptoms ... Lymphoproliferative Disorders ... ANA #patterns #rheumatology ... #diagnosis #differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Skin Disease Classification ... Differential Diagnosis ... Non-autoimmune rheumatologic ... : • Symptoms limited ... #Rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential Diagnosis ... Algorithm Pinpoint ... Vasculitis - Collagen disorders ... Autoimmune Vasculitis (lupus ... RA, Sjogren's, GPA
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders ... - Differential Diagnosis ... Algorithm Hodgkin ... pattern of spread, B symptoms ... #Classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Labs/Diagnosis: ... (e.g. systemic lupus ... Cryoglobulins #diagnosis ... #types #classification ... #rheumatology #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
rapidly progressing GN ... Presentation - Systemic Symptoms ... C-ANCA) pattern: antibodies ... #rheumatology # ... classification
Relapsing Polychondritis

What is it?
Recurrent inflammation of the cartilage in the body (Autoimmune disorder)

Who?
• Most frequently: 40
body (Autoimmune disorder ... ethnicities Symptoms ... + Nonspecific symptoms ... Anti-Matrilin-1 Ab ○ Antibodies ... Polychondritis #rheumatology