An example of liquid tumour is:

Options

A. Glioblastoma
B. Andeocarcinoma
C. Chondrosarcoma
D. Myelocystic leukemia

Answer

To solve the question "An example of liquid tumour is:", we will analyze each option provided and determine which one represents a liquid tumor.

### Step-by-Step Solution:

1. **Understand the Types of Tumors**:
- Tumors can be classified into two main categories: solid tumors and liquid tumors. Solid tumors are masses of tissue that can form in various organs, while liquid tumors, also known as hematological malignancies, primarily affect blood, bone marrow, or lymphatic systems.

2. **Analyze the First Option: Glioblastoma**:
- Glioblastoma is a type of brain cancer that primarily affects astrocytes, which are star-shaped glial cells in the brain. Since glioblastoma forms a mass of cells in the brain, it is classified as a solid tumor.
- **Conclusion**: Glioblastoma is **not** a liquid tumor.

3. **Analyze the Second Option: Adenocarcinoma**:
- Adenocarcinoma is a type of cancer that originates in glandular cells, which line various internal organs. This type of cancer also forms solid masses and is commonly seen in organs like the lungs.
- **Conclusion**: Adenocarcinoma is **not** a liquid tumor.

4. **Analyze the Third Option: Chondrosarcoma**:
- Chondrosarcoma is a cancer that arises from cartilage cells, typically affecting the bones. Like the previous examples, it results in a solid mass.
- **Conclusion**: Chondrosarcoma is **not** a liquid tumor.

5. **Analyze the Fourth Option: Myelocystic Leukemia**:
- Myelocystic leukemia is a type of leukemia that affects myeloid cells in the blood and bone marrow. Leukemia is characterized by the uncontrolled proliferation of blood cells, which makes it a liquid tumor because it involves the blood and does not form a solid mass.
- **Conclusion**: Myelocystic leukemia **is** a liquid tumor.

6. **Final Answer**:
- Based on the analysis, the correct answer to the question is **Myelocystic leukemia**.