16 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Petechial/Purpuric ... ) purpura occurs ... Nonpalpable purpura ... #Diagnosis #Dermatology ... #Purpuric #Rash
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... → Palpable • ... BrighamChiefs #Purpura ... #nonpalpable #palpable ... #Causes #Differential
Causes of Purpura - Differential Diagnosis
Disruption in Vascular Integrity: 
 • Trauma, Infection, Vasculitis, Drug induced
Causes of Purpura ... C), Pigmented purpuric ... BrighamChiefs #Purpura ... #nonpalpable #palpable ... #Causes #Differential
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... OF PALPABLE PURPURA ... Differential #Diagnosis #hematology ... palpable #nonpalpable ... #dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... purpura (16%) ... purpura • Vesicles ... overlying purpuric ... Henoch-Schönlein purpura
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Henoch Schonlein Purpura ... Rash: - Purpura ... Diagnosis #Algorithm #Causes ... #dermatology #physicalexam
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Crohn's disease Palpable ... purpura • Hypersensitivity ... Henoch Schönlein purpura ... Sarcoidosis #dermatology ... differential #diagnosis #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vessel: Petechiae, Palpable ... purpura, Hemorrhagic ... Vasculitis #skin #dermatology ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Purpura ... purpura: Strong ... purpura • Pauci ... purpura, joint ... purpura (lower
Bleeding manifestations 
Petechiae are small, flat, red, discrete areas of skin bleeding that are typically <2
areas of the body Purpura ... Purpura due to vasculitis ... is usually palpable ... Wet purpura is the ... #Petechiae #Purpura