Round cell tumors are among the most common skin tumors in dogs, and they typically form just under the skin, although they may change the surface of the skin above them. (brittonroadveterinaryclinic.com)
The cancer cells placed protective membrane «sacks» round cell waste, and filled them with chemicals to break up and recycle the contents. (cancerresearchuk.org)
But when they looked in the microscope, they saw small, round cells growing on it. (genomenewsnetwork.org)