Onycholysis and Chromonychia: A Case Caused by Trichosporon inkin

María Fernanda Ortega-Springall1, Sara Arroyo-Escalante1, Roberto Arenas1

  • 1Mycology Section, Department of Dermatology, 'Dr. Manuel Gea Gonzalez' General Hospital, Mexico City, Mexico.

Insights

Trichosporon inkin is a rare cause of fungal nail infections (onychomycosis). This case highlights its occurrence in an immunocompetent patient, presenting with nail discoloration and separation.

Area of Science:

  • Mycology
  • Dermatology
  • Infectious Diseases

Background:

  • Onychomycosis, a fungal nail infection, is typically caused by dermatophytes, with yeasts accounting for only 5-10% of cases.
  • Candida albicans is the most common yeast pathogen in onychomycosis, while Trichosporon species are rarely implicated.
  • Trichosporon species are increasingly recognized as a cause of fungemia in immunocompromised individuals, but can also cause superficial infections like onychomycosis in immunocompetent hosts.

Purpose of the Study:

  • To report a case of onychomycosis caused by Trichosporon inkin.
  • To describe the clinical presentation of fungal nail infection by Trichosporon inkin.

Main Methods:

  • Case report detailing clinical presentation and diagnosis of a fungal nail infection.

Main Results:

  • The patient presented with onycholysis (nail separation) and chromonychia (nail discoloration).
  • The causative agent was identified as Trichosporon inkin.

Conclusions:

  • Trichosporon inkin can cause superficial nail infections, such as onychomycosis, in immunocompetent individuals.
  • This case expands the spectrum of clinical manifestations attributed to Trichosporon species.

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