The correct answer is A. Kytococcus sedentarius

Pitted keratolysis is a skin disorder characterized by crateriform pitting that primarily affects the pressure-bearing aspects of the plantar surface of the feet. It is caused by a cutaneous infection with micrococcus sedentarius which is included in the Corynebacterium genus. These are gram-positive, catalase-positive, aerobic or facultatively anaerobic, generally nonmotile rods.

Corynebacterium diphtheriae infection is classically characterized by a local inflammation, usually in the upper respiratory tract, associated with toxin-mediated cardiac and neural disease. Corynebacterium tenuis causes trichomycosis. Patients typically present with yellow, black, or red pinpoint nodules on the hair shafts in the inguinal region. Staphylococcus aureus is a common bacterium that can result in formation of pustules, furuncles, cellulitis and abscesses. Candida species are responsible for superficial infections such as oropharyngeal candidiasis (thrush) and vulvovaginal candidiasis (vaginal Candidiasis) and is also occurs as an opportunistic infection

Incorrect:

The other associated organisms do not cause pitted keratolysis.

Reference:

https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2672.2002.01742.x

 

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