Nodular Skin Lesions in the Returning Traveler Furuncular Myiasis: • Pathogens: Dermatobia hominis, Cordylobia spp, Cuterebra spp • Region: Global • Features: One or more nodules with central puncta. Sensation of movement or lancinating pain. Furunculosis: • Pathogens: Staphylococcus aureus, Pseudomonas aeruginosa • Region: Global • Features: Cutaneous abscesses, can be associated with adjacent cellulitis Tungiasis: • Pathogens: Tunga penetrans (Sand flea) • Region: South/Central America, Africa, India • Features: Small papule with black center. Typically on the feet, including heel and toes Nodular Lymphangitis: • Pathogens: Sporothrix schenckii, Mycobacterium spp, Nocardia spp • Region: Global • Features: Nodular lesions with spread via lymphatics with associated lymphangitis. Cutaneous Leishmaniasis: • Pathogens: Leishmania spp • Region: Latin America, Middle East, Saharan Africa, SC Asia • Features: Typically ulcerative but can present as nodular or verrucous plaques Andrea Boggild, MD @BoggildLab #Nodular #Skin #Lesions #Returning #Traveler #dermatology #infections #differential #diagnosis
