[Histonet] tissue microarray problem

[Jacqueline Miller]

Hi everyone,

I'm making several practice tissue microarrays, and I'm having a lot of
problem with not being able to retrieve the donor core.  In other words,
after I punch the donor block, the core does not stay in the needle as
the needle is withdrawn.  Instead, the core remains in the block and the
only way to get it out is to pry it out, which ruins the surrounding
tissue.  I appreciate any tips that anyone can offer as to how to
retrieve the core when this happens, or better yet, how to keep this
from happening in the first place.

Thanks,
Jackie