We have recently received a few cytology cases submitted for immunocytochemistry (ICC) where the size of the slides used were too wide to fit in the slide holders for the testing.
We have attempted to physically file down the slides to try and make them fit, but the associated health and safety issues made it too dangerous. The size difference is only a matter of millimetres, but unfortunately it is enough to make staining impossible (see photo below).
Going forward, any slides that are too large for the special staining will be rejected as unsuitable for testing.
The slides we sell via our online shop are the perfect size for all laboratory testing, and we recommend you purchase these to use. They are suitable for all smear types.