Histopathology Artifacts Quiz
ANSWER CASE 18
This slide was left, unprotected, on a hotplate to dry overnight.
The micrograph shows fungal hyphae and conidia across the centre of
the section. Mounted, unstained sections which are left uncovered,
can become contaminated with a variety of airborne materials. They
should therefore be stored wherever possible, in a dust-free
environment before staining. So the correct answer here is fungal
contamination.

© Roy C. Ellis 2004