DOI: 10.1128/JCM.36.11.3389-3391.1998
Article Figures & Data
Figures
- Fig. 1.
Broom-like, verticillate, or dichotomous branching in the marginal mycelium of T. fischeri on BHI for 7 days. Magnification, ×1,000.
- Fig. 2.
Strictly monopodial branching in the marginal mycelium of T. rubrum on BHI for 7 days. Magnification, ×392 (magnification less than that in Fig. 1 because of longer internode lengths in T. rubrum).
Tables
- Table 1.
T. fischeri cases (possible cluster) seen over a 2-month period at a private medical laboratory
Source (patient sex and age) Specimen receipt date (1996) Microscopic finding (NaOH) Conformity with key T. fischericharacteristicsa Physician’s final diagnosis Sole (M, 52) 4 January − + Psoriasis Feet (M, 15) 11 January − + Atopic eczema Hand (M, 38) 12 January − + Pyoderma Toenail (M, 61) 24 January − + Onychodystrophy ↵a Key T. fischericharacteristics included red reverse pigment on SAB but not on CEA medium, heavy production of microconidia, broom-like hyphal branching on BHI, few or no thin macroconidia, urease negativity, and no alkalinity and no clearing on BCPMSG (see text for details).
- Table 2.
Comparison between T. fischeriand T. rubrum
Organism Result(s) with the following tests: SAB CEA BHI colony margin Urease production BCPMSG Vitamin requirements Hair perforation Pathogenicity T. fischeri Red undersurface pigment; many microconidia; few macroconidia No red undersurface pigment Broom-like-to-dichotomous branching Negative No alkalinity; no clearing None Negative No T. rubrum Red undersurface pigment; few microconidia (in most cases); rare macroconidia Red undersurface pigment Monopodial branching Negative No alkalinity; no clearing None Negative Yes
