ABSTRACT
Despite the advances in knowledge regarding the different types of cancer, mechanisms of carcinogenesis, new diagnostic methods, and new therapeutic systems, we still have not been able to find the cure for cancer. However, thanks to continuous care in medical oncology, cancer has become a real chronic disease for many [1]; this care will not cure cancer but seeks to improve patient survival, decrease symptoms, and increase intervals without signs of disease progression [2]. The term chronic cancer is defined as an active disease diagnosis—advanced or metastatic cancer that cannot be cured but can be controlled through continuous or cyclical long-term treatment [3] that will require frequent checkups to monitor its evolution and to adjust treatment and has similar needs to other chronic pathologies [4]. Some types of cancer may be included in this definition, such as ovarian cancer, chronic leukemia, some lymphomas, and even some types of cancer that have spread or metastasized in other parts of the body, such as breast or prostate cancer metastasis [5].
