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Journal of Clinical Microbiology, February 2005, p. 770-777, Vol. 43, No. 2
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.2.770-777.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Recurrent Colonization of Successively Implanted Tracheoesophageal Vocal Prostheses by a Member of the Fusarium solani Species Complex

K. Honraet,1 M. M. De Vos,1 R. C. Summerbell,2 I. van Kempen,2 S. De Saeger,3 H. Vermeersch,4 C. Van Peteghem,3 and H. J. Nelis1*

Laboratory for Pharmaceutical Microbiology,1 Laboratory of Food Analysis, University of Ghent,3 Department of Head and Neck Surgery, University Hospital of Ghent, Ghent, Belgium,4 Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands2

Received 29 April 2004/ Returned for modification 28 June 2004/ Accepted 6 October 2004

Tracheoesophageal vocal prostheses (TVP) in laryngectomized patients commonly deteriorate due to overgrowth by yeasts, particularly Candida species. We describe the first case of colonization of such devices by a member of the Fusarium solani species complex in a patient with a history of glottal carcinoma. Three isolates, from three prostheses, were found morphologically consistent with the traditional picture of F. solani. Ribosomal sequence analysis showed that the isolates belonged to a distinct, as yet apparently unnamed phylogenetic species within the F. solani species complex. This species, one of two distinct genetic types (genotype 2) traditionally considered part of the plant-pathogenic subtaxon Fusarium solani f. sp. radicicola, has not previously been identified as an agent of human or animal disease, although it is closely related to a known etiologic agent of mycetoma, an Acremonium-like species recently renamed Fusarium falciforme. Sequence and multisatellite M13 polymorphism analysis revealed no distinctions among the case isolates. Production of cyclosporine was detected for all three case isolates.

* Corresponding author. Mailing address: Laboratory for Pharmaceutical Microbiology, University of Ghent, Harelbekestraat 72, B-9000 Ghent, Belgium. Phone: 32-9-2648091. Fax: 32-9-2648195. E-mail: Hans.Nelis{at}UGent.be.

Journal of Clinical Microbiology, February 2005, p. 770-777, Vol. 43, No. 2
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.2.770-777.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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