One of the following is not a kidney disorder

Options

A. Pyelitis
B. Oedema
C. Bright's disease
D. Paget's disease

Answer

To solve the question "One of the following is not a kidney disorder," we will analyze each of the provided options to identify which one does not relate to kidney disorders.

### Step-by-Step Solution:

1. **Identify the Options**: The question presents four options. We need to evaluate each one to determine if it is a kidney disorder or not.

2. **Evaluate the First Option - Palatis**:
- Palatis refers to the inflammation of the renal pelvis (the part of the kidney that collects urine).
- Since it involves the kidney, this option is a kidney disorder.

3. **Evaluate the Second Option - Oedema**:
- Oedema is a condition characterized by fluid retention in the body.
- While it can be related to kidney function, it is not specifically a kidney disorder itself. However, it can be a symptom of kidney issues.
- For the purpose of this question, we will consider it as not specifically a kidney disorder.

4. **Evaluate the Third Option - Breit's Disease**:
- Breit's disease is another name for glomerulonephritis, which is an inflammation of the kidney's glomeruli.
- This is a kidney disorder.

5. **Evaluate the Fourth Option - Paget's Disease**:
- Paget's disease is a bone disorder that disrupts the normal replacement of old bone tissue with new bone tissue.
- It does not affect the kidneys and is not related to kidney disorders.

6. **Conclusion**: Based on the evaluations:
- Option 1 (Palatis) is a kidney disorder.
- Option 2 (Oedema) is not a specific kidney disorder.
- Option 3 (Breit's Disease) is a kidney disorder.
- Option 4 (Paget's Disease) is not a kidney disorder.

Therefore, the correct answer to the question is **Option 4 - Paget's Disease**.