Definition:
After treatment completion, an individual is generally assessed for response after a period of time to allow maximal regression of the tumor. At the end of that period if there is disease remaining without much change from pre-treatment conditions – it is called stable disease (SD). It implies that there is no significant decrease or increase in the size or number of lesions in the body.
Stable disease also means that further treatment will probably be required to attempt a cure. In some slow growing tumors (including low grade lymphomas) no further treatment may be immediately necessary till the disease starts increasing in size again.
Understand more about other terms used in assessing treatment response in the article How is treatment response described?
Also Known As: SD, static disease
