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Related Experiment Videos

Primary cutaneous cryptococcosis: a distinct clinical entity.

Ségolène Neuville1, Françoise Dromer, Odile Morin

  • 1Centre National de Référence des Mycoses et des Antifongiques, Unité de Mycologie Moléculaire, Institut Pasteur, 75724 Paris cedex 15, France.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|January 23, 2003
PubMed
Summary

Primary cutaneous cryptococcosis (PCC) is a distinct skin infection caused by Cryptococcus neoformans, differing from secondary forms. This distinct entity shows a favorable prognosis, even in immunocompromised individuals.

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Area of Science:

  • Mycology
  • Infectious Diseases
  • Dermatology

Background:

  • Cryptococcus neoformans causes disseminated meningitis, particularly in immunocompromised individuals.
  • Debate exists regarding primary cutaneous cryptococcosis (PCC) versus secondary cutaneous involvement from hematogenous spread.

Purpose of the Study:

  • To investigate the distinct epidemiological and clinical characteristics of PCC.
  • To differentiate PCC from secondary cutaneous cryptococcosis using French National Registry data.

Main Methods:

  • Retrospective review of cryptococcosis cases with skin lesions from the French National Registry.
  • Comparison of demographic, clinical, and microbiological data between PCC and secondary cutaneous cryptococcosis groups.

Main Results:

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  • PCC cases (n=28) were associated with rural living, older age, a 1:1 male-to-female ratio, and absence of underlying disease.
  • PCC typically presented as a solitary lesion on exposed areas (e.g., whitlow, phlegmon), often following skin injury or exposure to bird droppings.
  • Isolation of C. neoformans serotype D was predominantly found in PCC cases, with no evidence of dissemination.

Conclusions:

  • Primary cutaneous cryptococcosis is a distinct epidemiological and clinical entity.
  • PCC is characterized by specific risk factors and clinical presentations.
  • PCC demonstrates a favorable prognosis, even in immunocompromised patients.