7 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... lesions (9.4%) • Maculopapular ... reticularis Differential ... pneumonia with glomerulonephritis ... #diagnosis #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Rash - Differential ... Diagnosis Algorithm ... infection - RMSF - Henoch ... Rash: - Purpura ... Diagnosis #Algorithm
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... Purpura Anti-GBM ... #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
, palpable purpura ... , maculopapular ... rash vesicular rash ... Nephrocalcinosis causes ... #Algorithm #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
, mucositis • Rash ... often present) Henoch ... tract, and often causes ... vesicles, pustules, maculopapular ... #Diagnosis #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often present • Henoch ... tract, and often causes ... mucositis - Rash ... #diagnosis #rheumatology ... #classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Skin ulcers - Glomerulonephritis ... Clinical triad of Palpable ... IgA vasculitis (Henoch-Schönlein ... #types #classification ... #rheumatology #