M. canis

Figure 4.25 A: M. canis * B: M. gypseum * C: M. nanum * *Courtesy of Sandra Arduin, Michigan Department of Community Health
Figure 4.25
A: M. canis *
B: M. gypseum *
C: M. nanum *
*Courtesy of Sandra Arduin,
Michigan Department of
Community Health
(Figure 4.25A)
  • Infection: #1 cause of tinea capitis (ectothrix) worldwide, often transmitted from cats/dogs
  • Colony: fluffy white → reverse deep yellow
  • Hyphae: racquet hyphae, nodular bodies, chlamydospores
  • Conidia: spindle-shaped with rough, thick walls and pointed ends (>6 cells)
  • Misc: (+) polished rice growth, (+) hair perforation