334 DISEASES/DISORDERS
Fig. 21.17.Toothbrush sampling technique: after brushing through hair coat, bristles are lightly tapped on
the surface of the culture medium; deep embedding of loosened scale and hair should be avoided.
(a)(c)(b)Fig. 21.18. (a)Microsporum caniscolonies appear white/cottony. (b)Microsporum gypseumcolonies appear
ivory/granular. (c)Trichophyton mentagrophytescolonies appear white/powdery.