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Related Experiment Videos

Cutaneous protothecosis--a case report.

K Otoyama, N Tomizawa, I Higuchi

    The Journal of Dermatology
    |December 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

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    A rare skin infection, cutaneous protothecosis, caused by Prototheca wickerhamii was diagnosed in a traveler returning from Taiwan. Surgical excision was necessary as antifungal treatment proved ineffective.

    Area of Science:

    • Medical Mycology
    • Infectious Diseases
    • Dermatology

    Background:

    • Prototheca species are ubiquitous, algae-like microorganisms that can cause opportunistic infections in humans, known as protothecosis.
    • Cutaneous manifestations are the most common form of human protothecosis, often presenting as papules, plaques, or nodules.

    Observation:

    • A 62-year-old man presented with an erythematous plaque on his back after traveling to Taiwan.
    • Skin biopsy and culture confirmed the presence of Prototheca wickerhamii, identified by characteristic sporangia and biochemical assimilation tests.

    Findings:

    • The patient's cutaneous protothecosis was resistant to oral 5-fluorocytosine (5-FC) treatment.
    • Surgical excision was ultimately required for the successful management of the skin lesion.

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    Implications:

    • This case highlights the importance of considering protothecosis in patients with unusual skin lesions, especially after travel to endemic areas.
    • The therapeutic challenges associated with Prototheca wickerhamii infections underscore the need for further research into effective treatment strategies.
    • Accurate diagnosis through biopsy and culture is crucial for guiding appropriate clinical management of cutaneous protothecosis.