The classification for patients receiving therapy before planned surgery is known as what?

The classification for patients receiving therapy before planned surgery is known as the ypTNM Classification. This classification system is specifically utilized to describe the stage of cancer in patients who have undergone neoadjuvant therapy, which is treatment given prior to surgical intervention. The 'y' in ypTNM signifies that the evaluation is after treatment, allowing for an assessment of how the tumor has responded to the preceding therapy.

Using this classification helps healthcare providers understand the effectiveness of the treatment and make informed decisions about subsequent care. It is crucial for evaluating prognosis, as well as determining the extent of residual disease post-treatment, which can impact surgical planning and the potential for further treatments.

In contrast, the other classifications serve different purposes. The cTNM Classification is used to define the clinical stage of cancer before any treatment has occurred, the rTNM Classification is utilized for assessing recurrent disease after initial treatment, and ycTNM is not a standard classification in oncology. Thus, the ypTNM classification is the most relevant for patients who have received therapy before surgery.