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Related Experiment Videos

Green foot.

W P LeFeber, L E Golitz

    Pediatric Dermatology
    |July 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    A 13-year-old boy experienced asymptomatic green discoloration on his foot and toenails. Pseudomonas aeruginosa bacteria colonized his shoe, causing the color change without skin infection.

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    Area of Science:

    • Dermatology
    • Microbiology

    Background:

    • Pseudomonas aeruginosa is a bacterium known to cause various infections.
    • It can affect skin, nails, hair follicles, and deeper tissues.

    Observation:

    • A case study of a 13-year-old male presenting with asymptomatic green discoloration.
    • The discoloration was noted on the toenails and sole of the right foot.
    • Pseudomonas aeruginosa was isolated from the patient's shoe, but not from the affected skin.

    Findings:

    • The green discoloration of the foot was attributed to shoe colonization by Pseudomonas aeruginosa.
    • This occurred in the context of wearing occlusive, rubber-soled basketball shoes with hyperhidrosis.
    • Notably, the skin itself was not infected, making this a unique presentation.

    Implications:

    • Highlights a non-infectious, pigment-producing consequence of bacterial colonization in footwear.
    • Suggests environmental factors (occlusive shoes, sweat) can lead to unusual skin manifestations.
    • Underscores the importance of considering environmental microbial interactions in dermatological presentations.