Onychocola canadensis: First Isolates from Onychomycoses in Slovakia

Authors: A. Volleková 1,2;  M. Lisalová 2
Authors‘ workplace: Katedra dermatovenerológie FZŠŠ Slovenskej zdravotníckej univerzity, Bratislava 1;  Mykologické oddelenie HPL s. r. o., Bratislava 2
Published in: Epidemiol. Mikrobiol. Imunol. 58, 2009, č. 1, s. 19-24


Toenail onychomycoses are among the most common human superficial mycoses. The species spectrum of the causative agents, mainly nondermatophytes, is broad and varied.

During 14 months (March 2007 to April 2008), Onychocola canadensis Sigler 1990, an uncommon nondermatophyte, was identified microscopically and by culture as the causative agent of nail infection in four patients. It is the first report of this species in the Slovak Republic. The experience gained with the identification of this uncommon, slow-growing arthroconidial fungus is presented.

Key words:
Onychocola canadensis – colony morphology – micromorphology – onychomycoses.


1. Baeck, M., Laukes, N., Decroix, J., Surmont, I. Onychomycosis due to Onychocola canadensis. Ann Dermatol Venereol, 2006, 133, 380-382.

2. Campbell, C.K., Johnson, E.M., Warnock, D.W. Nail infection caused by Onychocola canadensis: report of the first four British cases. J Med Vet Mycol, 1997, 35, 423-425.

3. Contet-Audonneau, N., Schmutz, J.-L., Basile, A.-M., Biévre, C. de. A new agent of onychomycosis in the erderly: Onychocola canadensis. Eur J Dermatol, 1997, 7, 115-117.

4. Erbagci, Z., Balci, I., Erkilić, S., Zer, Y., Inci, R. Cutaneous hyalohyphomycosis and onychomycosis caused by Onychocola canadensis: report of the first case from Turkey. J Dermatol, 2002, 29, 522-558.

5. Fanti, F., Conti, S., Zucchi, A., Polonelli, L. First Italian report of onychomycosis caused by Onychocola canadensis. Med Mycol, 2003, 41, 447-450.

6. Gibas, C.F.C., Sigler, L., Summerbell, R.C., Currah, R.S. Phyllogeny of the genus Arachnomyces and its anamorphs and the establishment of Arachnomycetales, a new eurotiomycetes order in the Ascomycota. Stud Mycol, 2002, 47, 131-139.

7. Gibas, C.F.C., Sigler, L., Summerbell, R.C., Hofstader, S.L.R., Gupta, A.K. Arachnomyces kanei (anamorph Onychocola kanei) sp.nov., from human nails. Med Mycol, 2002, 40, 573-580.

8. Gibas, C.F.C., Sigler, L., Currah, R.S. Matting patterns and ITS sequences distinguish the sclerotial species Arachnomyces glareosus sp. nov. and Onychocola sclerotica. Stud Mycol, 2004, 50, 525-531.

9. Gupta, A.K., Horgan-Bell, C.B., Summerbell, R.C. Onychomycosis associated with Onychocola canadensis: ten case reports and a review of the literature. J Am Acad Dermatol, 1998, 39, 410-417.

10. Hoog, G.S. de, Guarro, J., Gene, J. Figueras, M.J. Atlas of Clinical Fungi, 2nd ed, CBS, Utrecht, The Netherlands, 2000, 1126 s. ISBN 90-70351-26-9.

11. Koenig, H., Ball, C., Bievre, C. de. First European cases of onychomycosis caused by Onychocola canadensis. J Med Vet Mycol, 1997, 35, 71-72.

12. Llovo, J., Prieto, E., Vazquez, H., MuĖoz, A. Onychomycosis due to Onychocola canadensis: report of the first two Spanish cases. Med Mycol, 2002, 40, 209-212.

13. O’Donoghue, N.B., Moore, M.K., Creamer, D. Onychomycosis due to Onychocola canadensis. Clin Exp Dermatol, 2003, 28, 283–284.

14. Sijs, A., Temmerman, L., van Walleghem, L., Mareen, A. Onychocola canadensis: a rare cause of onychomycosis. Tijdschr Geenesk, 2007, 63, 207-210.

15. Sigler, L., Abbott, S.P., Woodgyer, A.J. New records of nail and skin infection due to Onychocola canadensis and description of its teleomorph Arachnomyces nodosetosus sp.nov. J Med Vet Mycol, 1994, 32, 275-285.

16. Sigler, L., Congly, H. Toenail infection caused by Onychocola canadensis gen. et sp. nov. J Med Vet Mycol, 1990, 28, 405-417.

17. Summerbell, R.C., Cooper, E., Bunn, U., Jamieson, F., Gupta, A.K. Onychomycosis: a critical study of techniques and criteria for confirming the etiologic significance of nondermatophytes. Med Mycol, 2005, 43, 39-59.

18. Torres-Sangiao, E., Durán-Valle, M.T., Velasco-Fernández, D., Villanueva-Gonzales, R. Distal and lateral subungual onychomycosis in a 71-year-old woman. Enferm Infecc Microbiol Clin, 2006, 24, 527-528.

19. Van Esbroeck, M., Wuytack, C., Van Looveren, K., Swinne, D. Isolation of Onychocola canadensis from four cases of onychomycosis in Belgium. Acta Clin Belg, 2003, 58, 190-192.

20. Volleková, A., Lisalová, M. a spol. Onychomykózy vyvolané Onychocola canadensis u prvých štyroch pacientov v Slovenskej republike. Čs Dermatol, (pripravené do tlače)

21. Anonymus: Laboratorní diagnostika. Stanovení citlivosti mikroskopických hub k antimykotikům v podmínkách in vitro. 2006, ITESTplus s.r.o., Hradec Králové, Česká republika.

Hygiene and epidemiology Medical virology Clinical microbiology
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