Pannus' is formed in which disease .

Options

A. hashimoto disease
B. multiple sclerosis
C. rheumatoid arthritis
D. myasthenia gravis

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Pannus":**
- Pannus refers to an abnormal layer of fibrovascular tissue or granulation tissue that forms on the surface of a tissue or organ. In the context of joints, it is associated with inflammation and can lead to damage.

2. **Identifying the Diseases Listed:**
- The options provided are:
- Hashimoto's disease
- Multiple sclerosis
- Rheumatoid arthritis
- Myasthenia gravis

3. **Analyzing Each Disease:**
- **Hashimoto's disease:** This is an autoimmune disorder that affects the thyroid gland but is not primarily associated with joint issues or the formation of pannus.
- **Multiple sclerosis:** This is a disease that affects the central nervous system and does not involve the formation of pannus in joints.
- **Rheumatoid arthritis:** This is an inflammatory autoimmune disease that primarily affects the joints, leading to pain, swelling, and the formation of pannus.
- **Myasthenia gravis:** This is an autoimmune disorder that affects communication between nerves and muscles, and it does not involve pannus formation.

4. **Conclusion:**
- Based on the analysis, pannus is specifically formed in rheumatoid arthritis, which is characterized by chronic inflammation of the joints.

**Final Answer:**
Pannus is formed in rheumatoid arthritis.

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