We use the mesh cassettes for bone marrow biopsies and have had no problem with reagent infiltration,etc...they look beautiful.  As for the other biopsy cases we have , we use the blue biopsy pads and for very tiny cases  we use HistoGel  and then put them in the mesh cassettes. We use biopsy bags "tea bags" only for brain biopsies.  We have very few problems with loss of specimens......Good luck...hope you find something that helps you !!!
Have a great day and a wonderful Holiday...  : )

Vicki 
Albany Medical Center

>>> Dale Denise Hardy <DHardy@health-first.org> 12/21/00 04:05PM >>>
We have recently experienced a dramatic increase (3 within 6 weeks) in the loss of small biopsy specimens and are using biopsy sponges exclusively.  In previous institutions it seems we would have 1-2 occurrences per year at most, however lens paper, biopsy bags, and sponges were all used to secure specimens based on size and type.  I have decided to switch exclusively to nylon biopsy bags until I can evaluate other alternatives.  Folding lens paper (Biowraps, Histowraps, etc.) might not work well in our grossing environment and "tea bags" are a little more difficult to open compared to their nylon counterpart, although more expensive.  I would be interested in any feedback in regard to this issue as well as comments on using the "mesh" cassettes.  I understand that the "mesh" cassettes are more expensive - I'm wondering about reagent flow and carry over in regard to processing; also the plastic smaller-holed biopsy cassettes as well.