We had the opportunity to read the recent interesting article by Sobrinho FA et al. reporting the case study of a 50-year-old male patient who had the final diagnosis of cutaneous infection by Malassezia spp clinically established with the use of Wood's lamp and later confirmed by the culture findings of samples from the affected skin regions.1 The authors objectively commented historical registers and practical applicability of this simple and effective diagnostic tool utilized for practical dermatological propedeutics. They emphasized the usefulness of the tints of fluorescence to indicate the presence of tetracyclines in teeth and of porphyrins in urine or skin, and infections by Malassezia.1 Physiopathological relationships have been described among myelofibrosis, porphyria, alcoholism, seborrheic dermatitis (SD), besides Malassezia and COVID-19 infections.2-8 Of note, authors have highlighted diagnostic conundrums and management challenges involving cutaneous manifestations in patients with more elevated alcohol consumption during the pandemic, which may cause elevated serum levels of iron and porphyrin.
