Scabies Gonzalo De Toro, MD Key Facts Etiology/Pathogenesis Caused in humans by scabies mite Sarcoptes scabiei variety hominis Clinical Issues Predilection for interdigital areas and flexures, waist, ankles, and intergluteal…

Schistosomiasis Michael W. Peterson, DO Cary Chisholm, MD Clay J. Cockerell, MD Key Facts Terminology Schistosomes are trematodes (flukes) or flatworms Etiology/Pathogenesis Schistosomes &/or their eggs lodge in vessels Clinical…

Mycetoma Brian J. Hall, MD Francisco G. Bravo, MD Key Facts Terminology Localized chronic granulomatous infection involving skin, subcutaneous tissue, and occasionally underlying soft tissue and bone; can be caused…

Verrucae David Cassarino, MD, PhD Key Facts Terminology Verruca vulgaris (VV) Common warts Palmoplantar warts (myrmecia) Flat warts (verruca plana) Etiology/Pathogenesis Causal relationship with numerous HPV types Clinical Issues Common…

Aspergillosis Andrew C. Walls, BSc Chad Jessup, MD, MS Martin C. Mihm, Jr., MD Key Facts Terminology Cutaneous fungal infection due to angioinvasive Aspergillus spp. Clinical Issues Key risk factor:…

Lobomycosis Patricia J. Alvarez, MD Francisco G. Bravo, MD Key Facts Etiology/Pathogenesis Causative agent: Fungus Lacazia loboi Habitat somewhere in rural environment Introduced directly into dermis through injury Clinical Issues…

Candidiasis Irina Margaritescu, MD, DipRCPath Bruce R. Smoller, MD Key Facts Terminology Common superficial infection of skin and mucous membranes caused by yeasts of genus Candida Etiology/Pathogenesis C. albicans is…

Zygomycosis Brian J. Hall, MD John C. Hall, MD David J. DiCaudo, MD Key Facts Terminology Deep fungal infection caused by 2 orders (Mucorales, Entomophthorales) Microscopic Pathology Mucormycosis Rarely septate,…

Blastomycosis Brian J. Hall, MD David J. DiCaudo, MD Key Facts Etiology/Pathogenesis Exposure to thermally dimorphic fungus Blastomyces dermatitidis found naturally in soil Clinical Issues 2 classic cutaneous presentations Verrucous:…