9 results
Vasculitis: In this instance, the vasculitic skin lesions were secondary to Haemophilus endocarditis.
Photo credit, Josh Fierer,
skin lesions were ... secondary to Haemophilus ... Photo credit, Josh ... #Dermatology #SkinRash ... #UCSDH
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... Skin rash and malaise ... the palms of the hands ... resembling rashes caused ... #Clinical #Photo
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... reddish-purple lesions ... in primary or secondary ... cryoglobulins • Skin
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin ... Rash - Differential ... Scaly/Erythematous lesions ... Secondary to venous ... #Eczematous #SkinRash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... lesions • Mononeuritis ... tract, and often causes ... mucositis - Rash ... Ocular inflammatory lesions-interstitial
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... central clearing • Secondary ... Papulosquamous #SkinRash ... Diagnosis #Algorithm #causes
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... Irregular pustules on hands ... Generalized itchy rash ... Secondary syphilis ... #Lesions #Differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... muscle weakness • Nerves ... , mucositis • Rash ... tract, and often causes ... : • Skin lesions
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... of necrotizing vasculitis ... on the back of hands ... classic targetoid lesions ... comparison #table #differential