Microarray experiments produce a large volume of data that require validation. The
validation of these experiments can be carried out in many fashions. In the reduction to
clinical utility, the use of tissue microarrays has become a common tool to both validate and
generalize the results of microarray experiments. A tissue microarray is a collection of tissue
specimens presented on a glass slide in a grid layout. Tissue microarrays contain between
tens and hundreds of samples allowing the generalization of microarray findings to a large …