What is the major absolute contraindication to lumpectomy and radiation?

• A. Previous radiation to the chest
• B. Extensive ductal carcinoma in situ (DCIS)
• C. Collagen vascular disease
• D. Pregnancy

Answer: (D)

The major absolute contraindication to lumpectomy and radiation is previous radiation to the chest. When a patient has undergone radiation treatment in the past, particularly to the breast or chest area, additional radiation poses a significant risk. This can lead to an increased probability of complications such as severe tissue damage, fibrosis, and possibly the development of secondary malignancies. The tissues that have been irradiated previously are often much more sensitive and can react poorly to further radiation exposure.

Extensive ductal carcinoma in situ (DCIS) is a factor that may lead to recommending mastectomy over lumpectomy, but it does not outright prohibit lumpectomy and radiation. Collagen vascular disease can complicate treatment processes, particularly in wound healing, but it is not an absolute contraindication. During pregnancy, while special considerations and adaptations are needed in the management of breast cancer, it does not categorically rule out lumpectomy and radiation, especially when carefully managed. Therefore, previous radiation is the primary factor that contraindicates further lumpectomy and radiation procedures.