Cutaneous infection with an Alternaria sp. in an immunocompetent host

C Williams1, A M Layton, K Kerr

  • 1Department of Dermatology, Harrogate District Hospital, Harrogate, UK. tinawilliams@doctors.org.uk

Insights

This study details a rare case of cutaneous alternariosis in an 85-year-old man. Treatment with itraconazole for six months resulted in a positive clinical outcome.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Dermatology

Background:

  • Cutaneous alternariosis is a fungal infection typically affecting the skin.
  • While often associated with immunocompromised individuals, rare cases occur in immunocompetent hosts.

Observation:

  • An 85-year-old immunocompetent male presented with cutaneous alternariosis.
  • The causative fungal species was identified using 18S rRNA gene sequencing.

Findings:

  • Successful identification of the etiological agent of cutaneous alternariosis.
  • A six-month treatment course of itraconazole demonstrated significant clinical efficacy.

Implications:

  • Highlights the potential for Alternaria species to cause infection in immunocompetent individuals.
  • Suggests itraconazole as an effective therapeutic option for cutaneous alternariosis.
  • Emphasizes the utility of molecular methods like 18S rRNA sequencing for accurate fungal identification.

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