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

Immune Complex Mediated (granular staining):
pathophysiologic causes ... IgA nephropathy, Henoch-SchonIein ... Purpura Anti-GBM ... #Vasculitis #differential ... #diagnosis #algorithm
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Diagnosis: Vasculitis ... polyangiitis • EGPA • Henoch-Schönlein ... (inflamed blood ... #diagnosis #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Rash - Differential ... Diagnosis Algorithm ... Schonlein Purpura ... Rash: - Purpura ... Diagnosis #Algorithm
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Pain Rash ... Crohn's disease Palpable ... Henoch Schönlein ... #skin #rashes #differential ... #diagnosis #rheumatology
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Diagnosis Algorithm ... Scleroderma • Henoch-Schonlein ... #JointPain #MSK ... Diagnosis #Algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Schonlein Purpura ... tract, and often causes ... mucositis - Rash ... differential #diagnosis ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... Schonlein Purpura ... purpura, joint ... Diagnosis #Rheumatology
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
content [85].2>5 red blood ... pancreatitis), joints ... , palpable purpura ... , maculopapular ... #Algorithm #differential
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
hematuria) • Inflammatory ... • Cutaneous: palpable ... purpura 2/2 vasculitis ... Goodpasture's cause ... reveals increasing blood