This class contains attribures that identify whether more than one method of treatment were used or not.

This class indicates whether the patient received some sort of therapy as part of their cancer treatment that cannot be defined as surgery, radiation, or systemic therapy.

The relieving or soothing the symptoms of the patient's disease or disorder without effecting a cure. Source: Merriam-Webster's Medical Dictionary, 2002 Merriam-Webster, Inc.

This is the extension caused by or altered by or manifesting disease or pathology; "diseased tonsils"; "a morbid growth"; "pathologic tissue"; "pathological bodily processes" Source: The American Heritage Stedman's Medical Dictionary

Contains information pertinent patient followup history. e.g. follow-up status, vital status, the source from which the latest follow-up information was obtained. etc.

Contains information pertinent to patient's pre treatment assessment.

Positron-emission tomography (PET) is a nuclear medicine functional imaging technique that is used to observe metabolic processes in the body as an aid to the diagnosis of disease. It is used heavily in clinical oncology (medical imaging of tumours and the search for metastases). - Wikipedia. This class records details of any PET Scans performed.

Radiation therapy is the treatment of cancer with radiation, especially by selective irradiation with x-rays or other ionizing radiation and by ingestion of radioisotopes (Stedman's Medical Dictionary). This class indicates whether the patient received some sort of radiation therapy as part of their cancer treatment.

Contains information pertinent to the followup of the radiation treatment.

The reappearance, of the patient's cancer, after previous removal or remission of the cancer.

Indicates the reportable malignancy of a cancer that the patient PREVIOUSLY experienced.

An order, arrangement, or significance in which the reportable Malignancy takes place.

Sigmoidoscopy is the medical examination of the large intestine from the rectum to the sigmoid colon. This class records details of any sigmoidoscopies performed.

This class contains subsequent therapy related comments.

This class indicates whether the patient received some sort of systemic therapeutic procedure as part of their cancer treatment. These include bone marrow transplants, stem cell harvests, surgical and/or radiation endocrine therapy.

The evaluation of the patient's abnormal growth, of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm

Contains the status of the patient's tumor.