GDC Terminology Organoid Organoid Tissue 3D Organoid A three dimensional mass comprised of a cultured cell or tissue sample that resembles an in vivo tissue or organ. Organoids are grown in vitro from a combination of cells or tissue fragments cultured in medium containing a variety of biochemical factors. C172259 C0029250 3D Organoid Organoid GDC 26907527 GDC Value Terminology Tissue Sample Biospecimen Type