Parameters such as age, Breslow's thickness of invasion, Clark's level of invasion, lymph node involvement, anatomic site, and postoperative stage are prognostic factors for survival. Surgery should be performed in accordance with the accepted standards for cutaneous melanoma.

Summary Opportunistic yeast infections are diseases caused by fungi which normally are saprophytic and do not cause disease in humans or animals. The prevalence of these diseases has been increasing due to immunosuppressive, corticosteroid, and long‐term antibiotic treatment following organ transplantation or after serious metabolic, hematological, or immunological diseases. We review epidemiological, clinical, diagnostic, and therapeutic aspects of the four “big” opportunistic yeast infections: candidiasis, cryptococcosis, trichosporonosis, and geotrichosis.

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