The present invention relates to digital pathology. In order to facilitate analyzing a tissue microarray, an apparatus is provided for tissue examination. The apparatus comprises a data input (102), a tissue microarray analyzing unit (104), and an output (106). The data input is configured to receive a reference image of a reference slice obtained from a tissue sample block; and to receive a microarray image of a microarray slice comprising at least one tissue core obtained from at least the tissue sample block. The tissue microarray analyzing unit is configured to register tissue core images of at least one tissue core with the reference image based on a spatial arrangement of the respective tissue core within the tissue sample block. The output is configured to provide a registered result obtained from the tissue microarray analyzing unit for further analyzing purposes.