12 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
in vasculitic diseases ... Nonpalpable purpura ... rash, the diagnosis ... #Diagnosis #Dermatology ... #Purpuric #Rash
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Bone marrow disease ... #Differential # ... Diagnosis #hematology ... palpable #nonpalpable
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... infection Malar rash ... Palpable purpura ... Henoch Schönlein purpura ... #skin #rashes #differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Maculopapular rash ... reticularis Differential ... Polyangiitis #GPA #dermatology ... #rash #diagnosis ... #rheumatology
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura ... Pathophysiology: ... #Diagnosis #Dermatology ... #Rash #Petechiae ... #Algorithm #Differential
Vesiculobullous Rashes - THE ALGORITHMIC APPROACH 
Vesiculobullous rashes provoke significant angst
in many physicians (Figure 5, page
vesiculobullous rash ... disseminated gonococcal disease ... , purpura fulminans ... hand-foot-and-mouth disease ... #Diagnosis #Dermatology
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
Pigmented Purpuric ... extremities Schamberg Disease ... brown tint of the rash ... Dermatoses #Dermatosis #differential ... #diagnosis #dermatology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's Disease ... arthritis, Skin rash ... fraction < 20% Differential ... , Schnitzler) Complications ... management #treatment #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... Henoch-SchonIein Purpura ... involvement: Anti-GBM Disease ... Glomerulonephritis #Vasculitis #differential ... diagnosis #algorithm #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... mucositis - Rash ... Differential ... #Vasculitides #differential ... #diagnosis #rheumatology