"Tumor tissue" refers to the mass of abnormal cells that make up a tumor. It is a term used to describe the cluster of cells that have grown uncontrollably and formed a lump or swelling in a particular area of the body. Full definition
This may involve taking samples of tumor tissue, it may mean removing the whole tumor, or it may be an attempt to remove as much of the tumor as possible. (olddominionanimalhospital.com)
The researchers used tumor tissue samples from melanoma patients to search for variations in their internal messaging. (uchospitals.edu)
In particular, the molecular mechanisms by which fat cells communicate with tumor tissue remain poorly understood. (sciencecodex.com)