Carcinoma is a malignancy of

Options

A. Bone
B. Blood
C. Epithelial tissues
D. Reticuloendothelial tissues

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Malignancy":**
- Malignancy refers to the uncontrolled and unregulated growth of cells, which is characteristic of cancer. This growth can lead to the formation of tumors.

2. **Types of Tumors:**
- Tumors can be classified into two main types:
- **Benign Tumors:** These are non-cancerous and remain localized at one site without spreading to other parts of the body.
- **Malignant Tumors:** These are cancerous and have the ability to invade surrounding tissues and spread to other parts of the body.

3. **Types of Cancer:**
- Cancer can be categorized into three main types:
- **Carcinoma:** This type of cancer arises from epithelial cells, which are the cells that line the surfaces of organs and structures throughout the body.
- **Sarcoma:** This type arises from connective tissues, such as bones and muscles.
- **Leukemia:** This is a cancer of the blood-forming tissues, primarily affecting white blood cells.

4. **Identifying the Correct Answer:**
- The question asks about carcinoma specifically. Since carcinoma is defined as a malignancy of epithelial tissues, the correct answer is that carcinoma is a malignancy of epithelial tissues.

5. **Conclusion:**
- Therefore, the answer to the question "Carcinoma is a malignancy of?" is **epithelial tissues**.

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