Pitted keratolysis is a skin disorder that affects the stratum corneum of the
plantar surface and is caused by Gram-positive bacteria. A 30-year-old male
presented with small punched-out lesions on the plantar surface. A superficial
shaving was carried out for scanning electron microscopy. Hypokeratosis was
noted on the plantar skin and in the acrosyringium, where the normal elimination
of corneocytes was not seen. At higher magnification (x 3,500) bacteria were
easily found on the surface and the described transversal bacterial septation
was observed.
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