Basicmedical Key

Protothecosis Gretchen Frieling, MD Chad Jessup, MD, MS Martin Mihm, MD Key Facts Terminology Rare algal infection caused by organisms of genus Prototheca Etiology/Pathogenesis Principle defense thought to be neutrophilic…

Onchocerciasis George R. Collins, DO Joseph Susa, DO Clay J. Cockerell, MD Key Facts Etiology/Pathogenesis Caused by filarial nematode Onchocerca volvulus Transmitted to humans via bite of black fly of…

Tuberculosis Francisco G. Bravo, MD Patricia J. Alvarez, MD Key Facts Etiology/Pathogenesis Mycobacterium tuberculosus is etiologic agent Mechanism of propagation is by direct inoculation, contiguous infection, and hematogenous spread Clinical…

Leishmaniasis Brian J. Hall, MD Francisco G. Bravo, MD Key Facts Etiology/Pathogenesis Identification of kinetoplast allows for distinction from other commonly confused microorganisms Clinical Issues 4 main types of clinical…

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…