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CHROMOMYCOSIS AND PHAEOHYPHOMYCOSIS

In chromomycosis the characteristic organisms are round to oval thick-walled brown cells about 6–12 µm in diameter (sclerotic bodies, Medlar bodies). Intracellular septation may be seen. Single organisms or small groups are found within multinucleate giant cells, within microabscesses, suppurative granulomas, or surface crust. Tuberculoid granulomas are occasionally seen in the dermal infiltrate.[523] In phaeohyphomycosis, which is clinically distinct from chromomy­cosis, there are hyphal and yeast forms in suppurative granulomas. Species identification requires culture of the organism. Chromomy­cosis and phaeohyphomycosis are discussed further in  Chapter 25,  pages 596–598.