Breast Intraductal Papilloma: Recognition, Therapy, Link to Breast Cancer
Intraductal papillomas are benign, wart-like tumours that can develop in the ducts of the breast. While they are not breast cancer themselves, a new study reveals that they could potentially increase the risk of developing breast cancer, especially when multiple papillomas are present.
For those with multiple intraductal papillomas, several risk factors for breast cancer have been identified. Multiplicity of papillomas itself is a recognized risk factor, as multiple papillomas increase the likelihood of breast cancer compared to solitary papillomas.
Other risk factors include the presence of atypical ductal hyperplasia (ADH) or other proliferative changes, which are known premalignant lesions. Age, family history, and genetic mutations such as BRCA1 and BRCA2 mutations also raise breast cancer risk in these individuals, as they are common general risk factors for breast carcinoma.
The presence of hormonal receptor changes, such as estrogen receptor (ER) and progesterone receptor (PR) positivity in the surrounding tissue, can influence cancer risk, as can HER2 status and proliferation markers like Ki67. Other general breast cancer risk factors that may apply in this context include hormonal fluctuations, obesity, smoking, and alcohol consumption.
Molecular studies linking markers like cytokeratin expression (e.g., CK5/6, CK17) and mutations in tumour suppressor genes (TP53) may correlate with invasive potential and metastatic risk, which could be relevant for cancers arising from papillomas, although direct evidence specific to papillomas is limited.
Symptoms of intraductal papillomas, whether solitary or multiple, can resemble those of breast cancer and other conditions. These include clear or bloody nipple discharge and a lump behind or next to the nipple. However, it is important to note that the presence of intraductal papillomas does not mean a person will have breast cancer.
If atypical or cancerous cells are present within the intraductal papilloma, a doctor may recommend more frequent screenings or treatment. The procedure to remove an intraductal papilloma is typically performed under general anaesthesia, with the surgeon removing the growth and the affected portion of the milk duct, leaving unaffected areas of the breast intact.
For those currently breastfeeding, it is recommended to speak with a lactation consultant before undergoing the procedure. Early treatment for breast cancer is highly effective, making regular screenings and prompt diagnosis crucial for maintaining good health.
According to the American Cancer Society, women should speak to their doctors about screening from around the age of 40, and have a mammogram every 2 years from ages 50-74. If you have multiple intraductal papillomas, it is essential to discuss your risk factors for breast cancer with your doctor to ensure appropriate surveillance and diagnostic evaluation.
- The study suggests that multiple intraductal papillomas could potentially increase the risk of breast cancer, especially when accompanied by other premalignant lesions such as atypical ductal hyperplasia.
- Atypical hormonal receptor changes, like estrogen receptor (ER) positivity, HER2 status, and proliferation markers such as Ki67, can influence the risk of breast cancer in individuals with multiple intraductal papillomas.
- If atypical or cancerous cells are found within an intraductal papilloma, regular screenings or treatment may be recommended to monitor the risk of developing breast cancer.
- Women with multiple intraductal papillomas should discuss their risk factors for breast cancer with their doctors to ensure appropriate surveillance and diagnostic evaluation, following guidelines suggested by the American Cancer Society, such as regular mammograms from around age 40.
