Question

The most common neoplasm in patients with AIDS is:

• A. \( \text{Carcinoma of breast} \)
• B. \( \text{Acute myeloid leukaemia} \)
• C. \( \text{Adenocarcinoma} \)
• D. \( \text{Kaposi sarcoma} \)

Hint:

Kaposi sarcoma is a hallmark AIDS-defining illness. Early antiretroviral therapy (ART) significantly reduces the risk of developing Kaposi sarcoma and other AIDS-associated malignancies.

Answer 1

The Correct Option is D

Step 1: Understanding neoplasms in AIDS patients. Patients with AIDS are highly immunocompromised due to the depletion of CD4+ T cells. This increases their susceptibility to certain cancers, especially those caused by viral infections. 
Step 2: Explanation of Kaposi sarcoma. Kaposi sarcoma is a vascular tumor caused by human herpesvirus-8 (HHV-8). It is the most common neoplasm in AIDS patients and presents as red or purple skin lesions, often involving mucous membranes, lymph nodes, and visceral organs. 
Step 3: Comparison with other options. 
- Option \( (A) \): Carcinoma of the breast is not associated with AIDS. 
- Option \( (B) \): Acute myeloid leukemia (AML) is unrelated to AIDS. 
- Option \( (C) \): Adenocarcinomas are less common in AIDS patients compared to Kaposi sarcoma. 

Conclusion: Kaposi sarcoma is the most common neoplasm in AIDS patients, making \( (D) \) the correct answer.

Answer 2

This question asks about the cancer seen most often in people with AIDS. Since AIDS severely weakens the immune system, the answer is likely to be a cancer that is normally kept in check by a healthy immune system and driven by a specific virus. Let's look at each option.

1. Carcinoma of breast: Breast carcinoma develops from breast tissue and is linked to factors like hormones, age, and genetics, not to immune suppression or a specific virus tied to AIDS.
2. Acute myeloid leukaemia: AML arises from abnormal growth of bone marrow cells and is not driven by HIV infection or the immune suppression seen in AIDS.
3. Adenocarcinoma: This is a broad term for cancers arising from glandular tissue anywhere in the body. It is common in the general population but has no special link to AIDS.
4. Kaposi sarcoma: This tumor grows from the cells lining blood and lymph vessels and is caused by human herpesvirus 8. A healthy immune system normally suppresses this virus, but once CD4+ T cell counts fall in AIDS, the virus drives tumor growth, showing up as purple skin patches and lesions in organs.

Kaposi sarcoma stands apart because it depends directly on the immune collapse that defines AIDS, while the other three cancers occur in the general population for unrelated reasons.

Therefore, the correct answer is Kaposi sarcoma.