Introduction Medical oncology is a medical specialty responsible for planning treatment, monitoring progress, and administering drug therapies for patients diagnosed with cancer. As a subspecialty of internal medicine, medical oncology focuses on understanding the biology of cancer cells in order to prevent disease progression and improve patients’ quality of life.
What Is Medical Oncology?
Medical oncology is a comprehensive field of medicine dedicated to the treatment of malignant tumors through drug-based therapies. Oncology specialists (oncologists) are responsible for determining the most appropriate treatment strategy according to the stage of cancer and the patient’s overall health status.
Medical oncology not only focuses on treating existing cancer but also plays an important role in cancer screening, genetic risk assessment, and cancer prevention strategies.
What Diseases Does Medical Oncology Treat?
The Department of Medical Oncology is concerned with the systemic treatment of malignant diseases that can develop in nearly all organs and tissues of the body. The main disease groups followed within the Department of Medical Oncology include the following:
- Breast Cancer: One of the most common types of cancer among women, managed through hormonal therapies and targeted biological treatments.
- Lung Cancer: Treatment plans involving chemotherapy and immunotherapy are developed for both small cell and non-small cell lung cancer.
- Gastrointestinal Cancers: Tumors of the colon, rectum, stomach, pancreas, and esophagus fall within the specialty area of medical oncology.
- Gynecological Cancers: Drug therapies are administered for ovarian, uterine, and cervical cancers.
- Urological Cancers: Advanced-stage treatment of prostate, bladder, and kidney cancers is managed by medical oncology specialists.
- Head and Neck Cancers: Systemic treatment and disease control are provided for tumors affecting the larynx, oral cavity, and pharynx.
- Neuro-Oncology: Post-surgical medical treatment and supportive therapies for brain tumors are closely monitored and managed.
What Are the Diagnostic Methods Used in Medical Oncology?
The Department of Medical Oncology conducts a comprehensive evaluation process for patients with suspected cancer in order to determine the type of cancer and the extent of its spread. Accurate diagnosis is essential for improving treatment outcomes and increasing the likelihood of successful therapy. The main diagnostic methods used in medical oncology include:
- Imaging Techniques: PET-CT, MRI, Computed Tomography (CT), and Ultrasonography are used to determine the location, size, and extent of tumors.
- Pathological Examination: A definitive diagnosis is established through microscopic evaluation of tissue samples obtained via biopsy.
- Tumor Markers: Blood and urine tests are performed to measure the levels of cancer-related biomarkers and proteins, such as PSA, CEA, and CA-125.
- Genetic and Molecular Testing: Advanced analyses are conducted to identify genetic mutations within tumors and predict their response to specific therapies.
- Liquid Biopsy: An innovative diagnostic approach that analyzes circulating tumor DNA (ctDNA) in the bloodstream to detect and monitor cancer.
What Are the Treatment Methods Used in Medical Oncology?
In medical oncology, treatment is planned according to the stage of the disease and may be either curative (aimed at complete recovery) or palliative (aimed at improving quality of life and relieving symptoms). Since each patient has a unique biological profile, treatment approaches are individualized accordingly.
The main treatment methods used in medical oncology include:
- Chemotherapy: A drug-based treatment designed to stop the growth and multiplication of cancer cells.
- Targeted Therapies (Smart Drugs): Medications that specifically target certain receptors or molecular pathways in cancer cells while minimizing damage to healthy tissues.
- Immunotherapy: A modern treatment approach that stimulates the body's own immune system to recognize and destroy cancer cells.
- Hormone Therapy: Treatments that suppress hormone production or block hormone activity, particularly in hormone-sensitive tumors such as breast and prostate cancer.
- Supportive Care Treatments: Therapies aimed at reducing treatment-related side effects, including nausea, fatigue, and pain, thereby improving patient comfort and well-being.
Multidisciplinary Approach in Medical Oncology
Cancer treatment is a collaborative process that requires the expertise and joint decision-making of multiple medical specialties rather than a single discipline. Medical oncologists work in close coordination with various departments throughout the diagnosis, treatment, and follow-up process. The key specialties involved include:
- General Surgery (Surgical Oncology): Responsible for the surgical removal of tumors when appropriate.
- Radiation Oncology: Uses high-energy radiation to destroy cancer cells and control tumor growth.
- Radiology and Nuclear Medicine: Play a crucial role in cancer staging, treatment planning, and monitoring response to therapy.
- Pathology: Provides detailed reports on tumor cell type, molecular characteristics, and genetic features, helping to guide treatment decisions.
