6 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential Diagnosis ... Infection - Vasculitis ... Rash: - Purpura ... cryoglobulins • Skin ... #dermatology #physicalexam
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Diagnosis Framework ... Small Vessel: Petechiae ... , Palpable purpura ... : - Ig A (HSP) ... #differential #diagnosis
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
Palpable Purpura ... (HSP, IgA Vasculitis ... #clinical #photo ... #dermatology #skin ... #rash #physicalexam
Bleeding manifestations 
Petechiae are small, flat, red, discrete areas of skin bleeding that are typically <2
discrete areas of skin ... Purpura due to vasculitis ... is usually palpable ... Diagnosis VWF ... #Purpura #Bruise
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
tender pulses, bruits ... deficits vascular bruits ... of shoulder and hip ... ) • Palpable purpura ... ) • Palpable purpura
Primary Dermatological Lesions
Primary lesions are physical changes in the skin considered to be caused directly by
PETECHIAE and PURPURA ... : Petechiae are ... and may be palpable ... nettle sting #Diagnosis ... Nomenclature #Atlas #Key