Surgery - Breast | Medical Hub

31. What is the treatment for DCIS?

A) Lumpectomy + radiation or mastectomy B) Chemotherapy alone C) Radiation alone D) Observation only

32. What is the most common systemic treatment for hormone receptor-positive breast cancer?

A) Tamoxifen or aromatase inhibitor B) Chemotherapy C) HER2-targeted therapy D) Immunotherapy

33. What is the mechanism of action of tamoxifen?

A) SERM (selective estrogen receptor modulator) B) Aromatase inhibitor C) Estrogen receptor downregulator D) GnRH agonist

34. What is the most serious long-term side effect of tamoxifen?

A) Endometrial cancer and thromboembolism B) Hot flashes C) Mood swings D) Osteoporosis

35. What is the mechanism of action of aromatase inhibitors?

A) Inhibit conversion of androgens to estrogens B) Block estrogen receptors C) Decrease GnRH secretion D) Inhibit estrogen synthesis