title: Brown-Pigmented Mycobacterium mageritense as a Cause of Prosthetic Valve Endocarditis and Bloodstream Infection.
abstract: Mycobacterium spp. are a rare cause of endocarditis. Herein, we describe a case of Mycobacterium mageritense prosthetic valve endocarditis. This organism produced an unusual brown pigment on solid media. Cultures of valve tissue for acid-fast bacilli might be considered in some cases of apparently culture-negative prosthetic valve endocarditis.
authors.affiliation: Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: Allison R
authors.initials: AR
authors.lastname: McMullen
authors.affiliation: Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: Caline
authors.initials: C
authors.lastname: Mattar
authors.affiliation: Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: Nigar
authors.initials: N
authors.lastname: Kirmani
authors.affiliation: Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University School of Medicine, St. Louis, Missouri, USA cburnham@path.wustl.edu.
authors.forename: Carey-Ann D
authors.identifier: http://orcid.org/0000-0002-1137-840X
authors.initials: CA
authors.lastname: Burnham
mesh_terms: D000362:Agar; D001431:Bacteriological Techniques; D003470:Culture Media / Q000737:chemistry; D004696:Endocarditis / Q000150:complications / Q000175:diagnosis* / Q000382:microbiology / Q000473:pathology; D005260:Female; D006801:Humans; D008853:Microscopy; D008875:Middle Aged; D009161:Mycobacterium / Q000302:isolation & purification*; D009165:Mycobacterium Infections, Nontuberculous / Q000175:diagnosis* / Q000382:microbiology / Q000473:pathology; D010860:Pigments, Biological / Q000378:metabolism; D016459:Prosthesis-Related Infections / Q000150:complications / Q000175:diagnosis* / Q000382:microbiology / Q000473:pathology; D018805:Sepsis / Q000175:diagnosis* / Q000382:microbiology / Q000473:pathology
chemical_list: D003470:Culture Media; D010860:Pigments, Biological; D000362:Agar