It's a good guess because it's backed by the history. But cancer cells or mesothelioma requires atypical mesothelial cells to begin with. The low power field and high power field view shows that whatever is the cause for the disease is larger than a normal cell. On the low power field view, those tiny blue dots are what fibroblastic cell sizes would usually be.
RE: What's in the Slide? Guess and Win #2 [CLOSED]