Cytology from a needle aspiration biopsy of an anal sac adenocarcinoma of a dog.  Slide was stained with a modified Wright's stain.
<a href="//commons.wikimedia.org/wiki/User:Joelmills" title="User:Joelmills">Joel Mills</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>