12 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Palpable (raised ... palpable, the ... rash, the diagnosis ... #Diagnosis #Dermatology ... #Purpuric #Rash
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura ... - Diagnostic Algorithm ... lesions are palpable ... commonly renal and pulmonary ... Dermatology #Rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential Diagnosis ... reddish-purple lesions ... Rash: - Purpura ... : • Complete blood ... Algorithm #Causes #dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
• Petechiae, Palpable ... Maculopapular rash ... • Petechiae • Palpable ... vasculitis (inflamed blood ... #rash #diagnosis
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... cm diameter - Purpura ... dilated superficial blood ... Vascular #Vasculitis #SkinRash ... #dermatology #Differential
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 ... Discoid skin lesions ... Sarcoidosis #dermatology ... #differential #diagnosis
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
which allow red blood ... brown tint of the rash ... punctate lesions ... #differential #diagnosis ... #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... Vasculitis Differential Diagnosis ... pulses, bruits, or blood ... , mucositis • Rash ... #Differential #Diagnosis
Primary Dermatological Lesions
Primary lesions are physical changes in the skin considered to be caused directly by
Purpura are larger ... and may be palpable ... nettle sting #Diagnosis ... #Dermatology #Skin ... #Nomenclature #Atlas
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
ischemic skin lesions ... mucositis - Rash ... scleritis • Palpable ... pulses, bruis, or blood ... Large Vessel: Blood