22 results
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash - Differential ... or painful red nodules ... Multiforme - Target lesions ... #Reactive #SkinRash ... #dermatology #Differential
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
Blastomycosis Skin Lesion ... heaped up borders); differential ... Indiana University Infectious ... Blastomycosis #SkinRash ... #dermatology #clinical
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
/ Erythematous lesions ... Comedones +/- nodules ... borders of lips Infectious ... #Pustular #SkinRash ... #dermatology #Differential
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash - Differential ... foliaceus - Infectious ... Herpes zoster (shingles ... Vesiculobullous #SkinRash ... #dermatology #Differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint Pain ... parvovirus B19 infection ... Discoid skin lesions ... Sarcoidosis #dermatology ... #rashes #differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
burning sensation or pain ... reticularis Differential ... cell arteritis Infections ... diseases • Fungal infections ... Polyangiitis #GPA #dermatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... related vasculitis, infections ... : Subcutaneous nodules ... GPA Cutaneous Single ... Vasculitis #skin #dermatology
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
small vessels • Nodules ... vasculitis (5%): PAN ... vasculitis (3%) • Infections ... Vasculitis #dermpath #dermatology ... #differential
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Mucocutaneous or ocular ... lesions - Recent ... sulfa-drug - Skin pain ... #Diagnosis #Dermatology ... Targetoid #Algorithm #Differential
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... reddish-purple lesions ... - Trauma - Infection ... • Severe pain ... Algorithm #Causes #dermatology