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September 1980

Cystic Chromomycosis Caused by Wangiella dermatitidis

Author Affiliations

Charleston, SC

Arch Dermatol. 1980;116(9):987-988. doi:10.1001/archderm.1980.01640330025007

To the Editor.—  Confusion and dispute, which have accompanied the generic classification of the fungus first described as Hormiscium dermatitidis over the years,1 continue up to the present time, as shown in the December Archives (115:1433-1434, 1979) in an article entitled "Cystic Chromomycosis due to Wangiella dermatitidis" by Greer et al. Wangiella dermatitidis, as proposed by McGinnis3 and later corroborated with further isolates,4 does not show the Phialophora (phialides with collarettes) or the Cladosporium type of sporulation reported by Greer and colleagues for their isolates. It would seem inappropriate for these authors to apply the name W dermatitidis to an organism with a different type of sporulation and to disregard the work by McGinnis. In host tissue, W dermatitidis is reported to occur as dematiaceous mycelium and not to develop in the form of muriform cells (sclerotic bodies).5 According to some authors, this basic difference classifies

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