RT Journal Article SR Electronic T1 An introduction of an easy-operating and economical technique for tissue microarray preparation JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 403 OP 407 DO 10.1136/jclinpath-2019-206142 VO 73 IS 7 A1 Yi-Jing Chen A1 Chun-Mei Yang A1 Jiang-Sheng Huang A1 Ping Wang A1 Yan-Hua Lv A1 Cheng Tang A1 Wei Deng YR 2020 UL http://jcp.bmj.com/content/73/7/403.abstract AB Aim Tissue microarray (TMA) is a powerful and effective tool for in situ tissue analysis. However, manual TMA construction methods showed varied qualities. This study aimed to raise a standardised TMA preparation technique that can be easily operated and is economical.Methods A sampling needle was used to punch the tissue rods from the donor block and holes in the recipient block. To indicate the dots’ positions and ensure vertical punching, a novel auxiliary device made using commercial three-dimensional printing technology was attached. The TMA block was made up of tissue rods and a recipient block.Results A 77-rod (7×11) TMA block was constructed. The rows and columns were fixed in straight lines. There was no specimen loss during the process of embedding.Conclusions An alternative method for the construction of TMA blocks that met the basic requirement of many laboratories and can be effortlessly performed was presented.