12 results
Nodular lymphangitis - Causes of Sporotrichoid Lesions
 • Sporothrix schenckii - Gardening, soil, splinters, animal bites/scratches
Nodular lymphangitis ... splinters, animal bites ... #Nodular #lymphangitis ... Sporotrichoid #Lesions ... #differential #
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
- Generalized Differential ... = Primary Skin Lesions ... • Arthropod bites ... No Primary Skin Lesion ... #generalized #dermatology
Nodular Skin Lesions in the Returning Traveler
Furuncular Myiasis:
 • Pathogens: Dermatobia hominis, Cordylobia spp, Cuterebra spp
Nodular Skin Lesions ... Lymphangitis: ... with associated lymphangitis ... Returning #Traveler #dermatology ... #infections #differential
Pruritus - Primary Skin Lesion - Differential Diagnosis Algorithm
Macules / Papules / Plaques:
 • Xerosis (dry
- Primary Skin Lesion ... - Differential ... • Arthropod bites ... Pruritus #primary #dermatology ... #Differential #
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 #
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
or fluid-filled lesions ... Mucocutaneous or ocular ... lesions - Recent ... #Diagnosis #Dermatology ... Targetoid #Algorithm #Differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... Dermal/subcutaneous nodules ... • Erythematous nodules ... , erythematous nodules ... reticularis Differential
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
small vessels • Nodules ... Vasculitis #dermpath #dermatology ... semiology #signs #lesions ... manifestations #pathology #lesions ... #differential
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash - Differential ... / Erythematous lesions ... Comedones +/- nodules ... Pustular #SkinRash #dermatology ... #Differential #
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... - Differential ... Fire ant bites ... #Differential # ... Diagnosis #Dermatology