16 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
lesions (9.4%) • Maculopapular ... reticularis Differential ... • Goodpasture syndrome ... #dermatology #rash ... #diagnosis #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Sarcoidosis • GPA ... Antiphospholipid-antibody syndrome ... Sarcoidosis #dermatology ... #skin #rashes #differential ... #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Kasabach-Merritt syndrome ... #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... - GPA Cutaneous ... Disease • Cogan syndrome ... Vasculitis #skin #dermatology ... #rheumatology #
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
extensive skin rash ... • Maculopapular ... Resolution > 15 days Differentials ... SinaiBmoreIMRes #DRESS #Syndrome ... #dermatology #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... mucositis - Rash ... • Cogan Syndrome ... • ANCA (Dx: GPA ... #diagnosis #rheumatology
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Skin Lesions - Differential ... Generalized itchy rash ... SAPHO syndrome ( ... Sweet syndrome ... #Diagnosis #Dermatology
Inherited Qualitative Platelet Defects
Bernard-Soulier Syndrome
 • Defect of adhesion due to a lack of GP Ib/IX/V
Bernard-Soulier Syndrome ... due to a lack of GP ... Grey Platelet Syndrome ... comparison #table #differential ... #diagnosis #hematology
Symmetrical Drug-Related Intertriginous and Flexural Exanthema (SDRIFE)

49M +burning rash groins/buttocks (pic in next thread) x 1d.
PMH: DM (A1c 6.5% ... erythematous, confluent maculopapular ... known as baboon syndrome ... #clinical #photo ... #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... , mucositis • Rash ... vesicles, pustules, maculopapular ... #Diagnosis #Rheumatology