## **Core Concept**
The management of carcinoma prostate, especially in cases with no lymph node involvement or metastasis, involves considering the patient's age, overall health, and the cancer's characteristics, such as hormone sensitivity. For hormone-resistant prostate cancer, treatment options often focus on local control and palliation.

## **Why the Correct Answer is Right**
The correct answer, **Active Surveillance or Watchful Waiting**, is suitable for a 72-year-old man with hormone-resistant prostate cancer and no evidence of lymph node involvement or metastasis. This approach is often recommended for older men or those with significant comorbidities, as it avoids the side effects of more aggressive treatments while still monitoring for progression. For hormone-resistant prostate cancer, which is also known as castration-resistant prostate cancer, treatments are focused on symptom control and slowing disease progression.

## **Why Each Wrong Option is Incorrect**
- **Option A: Radical Prostatectomy** - This is a curative surgical approach typically considered for localized prostate cancer in younger, healthier patients with a longer life expectancy. It's not usually recommended for a 72-year-old man with hormone-resistant disease.
- **Option B: External Beam Radiation Therapy (EBRT)** - While EBRT is a treatment option for localized prostate cancer, it's generally considered for patients with a longer life expectancy or those with higher-risk disease. For hormone-resistant prostate cancer without metastasis, it might not be the first line, especially if the goal is palliation.
- **Option C: Chemotherapy** - Chemotherapy may be considered for metastatic hormone-sensitive or castration-resistant prostate cancer but is usually not the first line for a patient with no lymph node involvement or metastasis, especially if the patient is 72 years old and might have comorbidities.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that for elderly patients with localized, hormone-resistant prostate cancer, **active surveillance** is often a preferred approach to avoid treatment side effects and is consistent with a focus on quality of life. This approach includes regular PSA checks, digital rectal exams, and possibly repeat biopsies to monitor for progression.

## **Correct Answer:** . Active Surveillance or Watchful Waiting