Disease 'X' is an inflammation of synovial membrane in synovial joints that occurs in younger people. It is the result of an auto-immune reaction. Disease 'X' is

Options

A. Still's disease
B. Gaucher's disease
C. osteoarthritis
D. Parkinson's disease

Answer

**Step-by-Step Solution:**

1. **Identify the Characteristics of Disease 'X':**
- The question states that Disease 'X' is an inflammation of the synovial membrane in synovial joints.
- It specifically occurs in younger people.
- It is a result of an autoimmune reaction.

2. **Evaluate the Options Provided:**
- **Option 1: Stiehl's Disease**
- This is a rare type of inflammatory arthritis that affects the synovial joints, causing inflammation and pain. It is also an autoimmune disease, which matches the characteristics of Disease 'X'.
- **Option 2: Gaucher's Disease**
- This is a genetic disorder that affects the spleen, liver, and bone marrow, and does not involve synovial joints or inflammation, making it an incorrect option.
- **Option 3: Osteoarthritis**
- This condition involves the loss of cartilage in joints, leading to pain and stiffness, but it is not primarily an autoimmune disease and typically affects older individuals, thus it does not match Disease 'X'.
- **Option 4: Parkinson's Disease**
- This is a nervous system disorder that affects movement and does not involve synovial joints or inflammation, making it an incorrect option as well.

3. **Conclusion:**
- Based on the evaluation, the only option that fits all the criteria of Disease 'X' (inflammation of synovial membrane, affects younger people, and is autoimmune) is **Stiehl's Disease**.

**Final Answer: Disease 'X' is Stiehl's Disease.**

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