Synonyms See the summary of synonyms for the Chaetomium spp. Pathogenicity and Clinical Significance Chaetomium spp. Fatal deep mycoses due to Chaetomium atrobrunneum has been reported in an immunocompromised host. Brain abscess, peritonitis, cutaneous lesions, and onychomycosis may also develop due to Chaetomium spp. Macroscopic Features Chaetomium colonies are rapidly growing, cottony and white in color initially.
Mature colonies become grey to olive in color.
Microscopic Features Septate hyphae, perithecia, asci and ascospores are visualized. No special precautions other than general laboratory precautions are required. Very few data are available and there is as yet no standard method for in vitro susceptibility testing of Chaetomium spp. Search Medline Nucleotides GenBank Perithecium of Chaetomium Ascospores and asci of Chaetomium Ascospores and asci of Chaetomium References 367. Atlas of Clinical Fungi, 2nd ed, vol.