Histopathology Artifacts Quiz
ANSWER CASE 16
This micrograph shows three circular, darkly stained areas with pale
centres and surrounding radial cracks. After flotation and mounting
on a slide these areas contained air bubbles which collapsed during
drying leaving zones which are cracked and have not adhered properly
to the slide. The poor adherence produces altered staining. The
answer therefore is collapsed bubbles under the section.

© Roy C. Ellis 2004