Light micrograph of granulation tissue. Granulation tissue forms when inflammation has been present in tissues for days to a few weeks. Granulation tissue is made up of small blood vessels (pink tubular or circular structures) mixed with inflammatory cells (small blue dots) in a myxoid stroma (light blue background throughout). Haematoxylin and eosin stained tissue section. Magnification: 100x when printed at 10 cm.