Cancer Follow-Up Care: Exams After Treatment

1

Definition

Follow-up examinations after treatment for malignant tumors represent a crucial phase of the oncological journey, known as post-treatment surveillance or “survivorship care“. This phase officially begins when the primary therapeutic protocol — which may include surgery, chemotherapy, radiotherapy, immunotherapy or molecularly targeted therapies — has been successfully completed or has brought the disease into a phase of remission. The main objective of follow-up is not only to monitor the possible reappearance of the oncological disease, but also to manage the long-term side effects of therapies and improve the patient’s quality of life.

The follow-up path is personalized based on the type of carcinoma or neoplasm treated, the initial stage of the disease, the therapies received and the patient’s general health conditions. It is not a single event, but a structured program of periodic medical visits, instrumental tests and laboratory analyzes which usually lasts for at least five or ten years, and in some cases for life. During these meetings, the oncologist and the multidisciplinary team evaluate the global health status, monitoring signs of local recurrence or distant metastasis.

In addition to clinical surveillance, follow-up includes psychological support and physical rehabilitation. In fact, many patients, after having faced a melanoma, lymphoma or other forms of cancer, may experience physical or psychological sequelae that require specialist intervention. The definition of modern follow-up therefore embraces a holistic vision of the cancer survivor, aiming for complete reintegration into social and working life.

2

Causes and Risk Factors

The need for a rigorous follow-up program is dictated by the very biology of neoplastic diseases. Even when surgery appears to have completely removed the tumor, there is a risk that microscopic cancer cells remain in the body (minimal residual disease). These cells can remain silent for months or years before reactivating, leading to a recurrence.

Factors that influence the frequency and intensity of checks include:

• Biological aggressiveness of the tumor: Some cancers have a natural tendency to recur earlier than others.
• Stage at diagnosis: Patients initially diagnosed at an advanced stage require closer monitoring.
• Type of treatment received: Some chemotherapy drugs or radiation therapy can increase the risk of developing late toxicities or even second cancers (radiation-induced or chemo-induced cancers).
• Genetic factors: The presence of hereditary mutations (such as BRCA1 or BRCA2) may require more intensive surveillance not only for the organ originally affected, but also for other body areas at risk.
• Lifestyle and comorbidities: Smoking, obesity and the presence of chronic diseases such as diabetes can affect the risk of recurrence and the body’s ability to recover from treatments.

Understanding these factors allows doctors to calibrate the testing schedule, avoiding both diagnostic underdosing (which could miss an early relapse) and overtesting (which could cause unnecessary anxiety and physical stress).

3

Symptoms and Clinical Manifestations

During the follow-up period, the patient must be educated to recognize some signs that may indicate the need for early control. Although many of these symptoms may be related to benign conditions, their persistence requires medical attention. Symptoms are monitored to early identify a possible recurrence of the tumor or late complications.

Among the most common systemic symptoms to monitor are:

• Asthenia or chronic fatigue that does not improve with rest.
• Involuntary and rapid weight loss, not justified by diets or physical activity.
• Persistent fever or low-grade fever, especially in the evening and without an apparent infectious cause.
• Profuse night sweats.

Localized symptoms that may vary depending on the location of the primary tumor:

• Respiratory system: Persistent cough, difficulty breathing (air hunger) or presence of blood in the phlegm.
• Digestive system: difficulty swallowing, recurrent nausea, vomiting, persistent bowel changes such as constipation or prolonged diarrhea, or blood in the stool.
• Lymphatic and integumentary system: Appearance of subcutaneous nodules or swollen lymph nodes in the neck, armpits or groin. Even widespread and persistent itching can be a sign not to be underestimated.
• Musculoskeletal system: Localized bone pain, often more intense at night, which does not respond to common analgesics.
• Neurological system: New onset headache, dizziness, or sudden changes in vision or balance.

It is important to note that many patients also experience so-called lymphedema, which is swelling of the limbs due to the removal of lymph nodes, which requires specific management during follow-up.

4

Diagnosis

Diagnosis during follow-up is not aimed at identifying a new disease, but at confirming the state of remission or detecting a recurrence early. The diagnostic protocol uses various tools:

1. Medical history and physical examination: It is the pillar of follow-up. The doctor questions the patient about new symptoms and proceeds to carefully palpate the lymph node stations, the abdomen and the operated area.
2. Blood Tests and Tumor Markers: Routine tests are performed (blood count, liver and kidney function) and the dosage of specific markers such as PSA for prostate cancer, CEA for colorectal cancer, or CA-125 for ovary. It is essential to remember that markers are not infallible and must always be interpreted in the clinical context.
3. Imaging Radiologico:
   • Ultrasound: Useful for monitoring abdominal organs and soft tissues.
   • CT (Computed Tomography): Provides detailed images to rule out lung or abdominal metastases.
   • Magnetic Resonance Imaging (MRI): Often used for monitoring the central nervous system or musculoskeletal system.
   • PET/TC: A nuclear medicine test that allows you to identify areas with high metabolic activity, typical of tumor cells.
4. Endoscopy: In the case of tumors of the gastrointestinal or urinary tract, periodic gastroscopies, colonoscopies or cystoscopies may be scheduled.
5. Biopsy: If an imaging test finds a suspicious abnormality, a biopsy may be needed to confirm whether it is a recurrence or scar tissue.

5

Treatment and Therapies

“Treatment” in the context of QA06 follow-up refers primarily to management of the long-term consequences of the disease and previous therapies, as well as prevention of complications.

• Management of late side effects: Many patients suffer from chronic toxicity. For example, those who have received pelvic radiation therapy may have intestinal or urinary problems. Follow-up is used to prescribe supportive therapies, pain medications or rehabilitation interventions.
• Adjuvant Hormone Therapies: In many cases of breast or prostate cancer, the patient continues hormone therapy for 5-10 years. Follow-up monitors adherence to therapy and manages side effects such as osteoporosis or vasomotor symptoms.
• Psychological Support: Fear of recurrence (known as “scanxiety” or exam anxiety) is common. Psycho-oncology interventions are an integral part of follow-up treatment to manage anxiety and depression.
• Physical Rehabilitation: Physiotherapy for the recovery of mobility after surgery or for the treatment of lymphedema.
• Prevention of second cancers: Active monitoring to early identify new tumors that could arise due to genetic predisposition or previous treatments.

If a recurrence is diagnosed during follow-up, the patient is immediately redirected to a new active treatment plan (salvage surgery, second-line chemotherapy, etc.).

6

Prognosis and Course

The prognosis for patients in the follow-up phase is generally favorable, as most people who enter this path have already passed the critical phase of initial treatment. However, the course strictly depends on the statistical risk of recurrence of the specific tumor.

In general, the risk of recurrence is maximum in the first 2-3 years after treatment and tends to progressively decrease. Once the 5-year threshold is exceeded, for many cancers the risk stabilizes, and the patient can be considered a “long-term survivor”. For some tumors, such as hormone receptor positive breast cancer, the risk can persist even after 10 years, requiring very long monitoring.

Successful follow-up is measured not only in overall survival, but also in quality of life. A positive outcome sees the patient resume their daily activities, with a gradual reduction in the intensity of medical checks.

7

Prevention

Prevention in follow-up is called “tertiary prevention”. The goal is to prevent relapses and the onset of new diseases through lifestyle changes:

• Diet: A diet high in fiber, fruits and vegetables, and low in red and processed meats, is recommended to reduce systemic inflammation.
• Physical Activity: Regular exercise is one of the most powerful factors for reducing the risk of recurrence in many cancers (especially breast and colon) and for counteracting post-treatment asthenia.
• Abstention from Smoking: Fundamental for preventing second tumors and respiratory or cardiovascular complications.
• Sun Protection: Essential for those who have had melanoma or other skin tumors.
• Vaccinations: Keeping your vaccination plan up to date (flu, pneumococcal, HPV if indicated) is crucial to protect an immune system that may have been weakened by therapies.

8

When to Consult a Doctor

In addition to scheduled appointments, the patient should promptly contact their oncologist or general practitioner if the following warning signs appear:

• Appearance of a new lump or mass anywhere on the body.
• Persistent pain that does not go away with common medications and tends to get worse.
• Significant and lasting changes (over 2-3 weeks) in bowel or urinary habits.
• Unusual bleeding (blood in urine, stool, or coughing up blood).
• Weight loss of more than 5% of body weight in less than six months for no apparent reason.
• Persistent fever without signs of cold or flu.
• Changes in the appearance of a surgical scar or mole.

You should not wait for your scheduled check-up if you feel that “something is wrong.” Early diagnosis of a recurrence significantly increases the chances of successful further treatment.