30 yrs female presented with unilateral breast cancer associated with axillary lymph node enlargement. Modified radical mastectomy was done, a further treatment plan will be
**Core Concept**
The patient has undergone modified radical mastectomy for unilateral breast cancer with axillary lymph node involvement, necessitating further treatment to address potential residual disease and minimize recurrence risk.
**Why the Correct Answer is Right**
The standard approach after modified radical mastectomy for breast cancer involves radiation therapy to the chest wall and axilla to eliminate any microscopic disease that may have been left behind. This is particularly crucial in cases with lymph node involvement, as it significantly reduces the likelihood of local recurrence. Radiation therapy targets the high-risk areas where cancer cells are most likely to persist.
**Why Each Wrong Option is Incorrect**
**Option A:** Adjuvant chemotherapy is not the primary treatment following modified radical mastectomy, although it may be considered in certain high-risk cases or for systemic disease control.
**Option B:** Hormone receptor status (e.g., estrogen receptor-positive or progesterone receptor-positive) is crucial for determining the need for hormone therapy, but it is not the immediate next step after surgery.
**Option C:** Trastuzumab may be used in HER2-positive breast cancer, but it is not the standard next step for all patients undergoing modified radical mastectomy.
**Clinical Pearl / High-Yield Fact**
After surgery for breast cancer, radiation therapy is often the most effective way to eliminate microscopic disease in the chest wall and axilla, significantly reducing the risk of local recurrence.
**Correct Answer:** D. Radiation therapy to the chest wall and axilla.