Tissue Micro Array makes it possible for researchers to simultaneously compare a variety of molecular and protein parameters in tissues by immunohistochemistry / immunocytochemistry from dozens of individual specimens in a single TMA. Samples from different tissues are embedded and arrayed in paraffin to create a TMA block. TMA allows for up to 8-12-24-70 (4 mm, 3 mm, 2 mm, and 1 mm) different tissue samples to be present in a single tissue block. Each TMA block can be cut to obtain hundreds of serial sections, so it is possible to rapidly analyze hundreds of parameters in the same set of specimen.