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Home >> Specialities >> Cancer Care >> Breast cancer

Breast cancer

Breast cancer is a complex and prevalent disease that affects millions of people worldwide. It occurs when abnormal cells in the breast tissue grow uncontrollably, forming a tumor. While breast cancer can affect both men and women, it is most commonly diagnosed in women. Early detection, advances in treatment options, and increased awareness have significantly improved the prognosis for individuals with breast cancer.

Causes of Breast Cancer
The exact cause of breast cancer is not fully understood, but several risk factors have been identified:

  • Genetic Factors: Mutations in specific genes, such as BRCA1 and BRCA2, significantly increase the risk of developing breast cancer. These mutations can be inherited from one's parents.
  • Gender: Breast cancer is more common in women, although men can also develop the disease.
  • Age: The risk of breast cancer increases with age, with the majority of cases diagnosed in women over the age of 50.
  • Family History: Individuals with a family history of breast cancer are at a higher risk, especially if close relatives (e.g., mother, sister, daughter) have been diagnosed.
  • Hormonal Factors: Prolonged exposure to estrogen, which can occur through early menstruation, late menopause, hormone replacement therapy, or not having children, may increase the risk.
  • Reproductive History: Women who have never had children or had their first child after the age of 30 may have a slightly higher risk.
  • Radiation Exposure: Previous radiation therapy to the chest, particularly during childhood or adolescence, can increase the risk.
  • Personal History: Individuals who have previously been diagnosed with breast cancer are at an increased risk of developing a new cancer in the same or opposite breast.

Symptoms of Breast Cancer
Breast cancer can present with various symptoms, but not everyone with breast cancer will experience the same signs. Common symptoms include:

  • Breast Lump: A painless, firm lump or mass in the breast is often the most noticeable symptom.
  • Changes in Breast Size or Shape: The breast may appear swollen, larger, or distorted.
  • Skin Changes: Redness, dimpling, or puckering of the breast skin can occur.
  • Nipple Changes: The nipple may become inverted (turn inward) or develop unusual discharge, such as blood.
  • Breast Pain: While not usually a common symptom of breast cancer, some individuals may experience breast discomfort.
  • Swelling in the Armpit (Lymph Nodes): Enlarged lymph nodes in the armpit can be a sign that breast cancer has spread.

Diagnosis of Breast Cancer

  • Clinical Breast Examination: A healthcare provider performs a physical examination of the breast and lymph nodes to check for abnormalities.
  • Mammography: X-ray images of the breast are taken to detect tumors or abnormalities that may not be felt during a physical examination.
  • Breast Ultrasound: This imaging test uses sound waves to create images of the breast, helping to differentiate between solid masses and fluid-filled cysts.
  • Breast MRI: Magnetic resonance imaging can provide detailed images of the breast, particularly for individuals at high risk or to further evaluate suspicious findings.
  • Biopsy: A tissue sample is taken from the breast and examined under a microscope to confirm the presence of cancer and determine its type and stage.

Stages of Breast Cancer
Breast cancer is staged based on the size of the tumor, whether it has spread to lymph nodes, and whether it has metastasized (spread) to other parts of the body. The stages range from 0 to IV, with higher stages indicating more advanced disease.
Treatment Options for Breast Cancer
The treatment plan for breast cancer depends on several factors, including the type and stage of cancer, the individual's overall health, and personal preferences. Treatment options may include:

  • Lumpectomy: Removal of the tumor and a margin of surrounding tissue.
  • Mastectomy: Removal of the entire breast, which may be necessary in some cases.
  • Sentinel Lymph Node Biopsy: Examination of lymph nodes to determine if cancer has spread.
  • Radiation Therapy: The use of high-energy X-rays to target and kill cancer cells.
  • Chemotherapy: Systemic drugs that circulate throughout the body to destroy cancer cells.
  • Hormone Therapy: For hormone receptor-positive breast cancer, drugs may be used to block the effects of estrogen on cancer cells.
  • Targeted Therapy: Drugs that specifically target certain proteins involved in cancer growth.
  • Immunotherapy: A newer treatment approach that harnesses the body's immune system to fight cancer.
  • Adjuvant and Neoadjuvant Therapy: Treatment before or after surgery to reduce the risk of recurrence.
  • Clinical Trials: Participation in clinical trials to access new and experimental treatments.

Breast cancer is a complex disease with numerous risk factors, symptoms, and treatment options. Early detection through regular screening and breast self-exams is crucial for improving outcomes. Advances in research and treatment have significantly increased survival rates and many individuals with breast cancer go on to live long and healthy lives. A multidisciplinary approach involving healthcare providers, support networks, and patient advocacy organizations is essential in the fight against breast cancer.

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