Volume 29, Number 7—July 2023
Etymologia
Etymologia: Fonsecaea pedrosoi
Fonse caea pedrosoi [fon-se-se′ə pedro´soi]
Chromoblastomycosis (CBM) is a neglected tropical disease caused by dematiaceous fungi, mainly Fonsecaea pedrosoi (Figure). This disease resembles blastomycosis in the Americas; the prefix indicates causative microorganisms’ pigmentation. In 1911, Pedroso observed histologic pathognomonic findings for CBM. He also observed rounded and brownish elements, now called muriform cells, in skin biopsy specimens from a patient in Goiás, Brazil. In 1915, Medlar described a similar cutaneous infection on the basis of culture and histologic analyses. In 1922, Brumpt reported Pedroso’s findings as Hormodendrum pedrosoi. Genus description referred to dendroidal conidial chains.
Subsequent publications classified this fungus into different genera (Botrytoides, Phialophora, Phidoconidiophora, and Trichosporium) on the basis of type of sporulation. Multiple forms of conidiation in dematiaceous fungi contributed to frequent genus changes. Terra et al. described this fungus as Acrotheca pedrosoi. In 1936, Negroni renamed this microorganism Fonsecaea pedrosoi because Hormodendrum and Acrotheca reproductive structures were recognized in samples. The genus was named in honor of Fonseca Filho, a Brazilian investigator who made notable contributions to dermatomycoses.
References
- Brumpt E. Hormodendrum pedrosoi Brumpt. In: Précis de parasitology [in French]. Paris: Masson and Cie; 1922. p. 1105 [cited 2023 Apr 29]. https://agris.fao.org/agris-search/search.do?recordID=US201300541075</eref>
- Negroni P. Study of the first Argentine case of chromomycosis, Fonsecaea (Neg.) pedrosoi (Brump) 1921 [in Portuguese]. Rev Inst Bacteriol. 1936;7:424.
- Pedroso A, Gomes JM. About four cases of verrucous dermatitis produced by Phialophora verrucosa [in Portuguese]. An Paul Med Cir. 1920;11:53–61.
- Terra F, Torres M, Fonseca FO, Arêa-Leão A. New type of verrucous dermatitis: Acrotheca mycosis associated with leishmaniasis [in Portuguese]. Bras Med. 1922;36:363–8.
Figure
Cite This ArticleOriginal Publication Date: May 30, 2023
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Please use the form below to submit correspondence to the authors or contact them at the following address:
Mirelle Garcia Silva-Bailão, Laboratório de Biologia Molecular, Universidade Federal de Goiás, Avenida Esperança s/n ICB2, Sala 217, Goiânia, Brazil
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