9 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Nonpalpable purpura ... endocarditis, RMSF, and Henoch-Schönlein ... rash, the diagnosis ... #Purpuric #Rash ... #Algorithm #Nonpalpable
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... OF PALPABLE PURPURA ... #Differential # ... #rheumatology # ... palpable #nonpalpable
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Diagnosis Algorithm ... infection - RMSF - Henoch ... Rash: - Purpura
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 ... polyangiitis • EGPA • Henoch-Schönlein ... #diagnosis #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... Crohn's disease Palpable ... vasculitis • Henoch ... #skin #rashes #differential ... #diagnosis #rheumatology
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Algorithm - Approach ... , palpable purpura ... , maculopapular ... rash vesicular rash ... #Algorithm #differential
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 ... #diagnosis #algorithm ... #rheumatology
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 ... scleritis • Palpable ... #diagnosis #rheumatology