A low body temperature is not a characteristic of

Options

A. Cretinism
B. Myxodema
C. Exophthalmic goitre
D. Simple goitre

Answer

To solve the question "A low body temperature is not a characteristic of:", we need to analyze the four conditions provided: cretinism, myxedema, exophthalmic goiter, and simple goiter.

### Step-by-Step Solution:

1. **Identify the Conditions**:
- The four conditions we need to analyze are:
- Cretinism
- Myxedema
- Exophthalmic Goiter
- Simple Goiter

2. **Understand Cretinism**:
- Cretinism is a condition caused by severe deficiency of thyroid hormones (hypothyroidism).
- Symptoms include low metabolic rate and low body temperature.
- **Conclusion**: Low body temperature is a characteristic of cretinism.

3. **Understand Myxedema**:
- Myxedema is also a form of hypothyroidism, where there is insufficient production of thyroid hormones.
- Similar to cretinism, it leads to a decreased metabolic rate and low body temperature.
- **Conclusion**: Low body temperature is a characteristic of myxedema.

4. **Understand Exophthalmic Goiter**:
- Exophthalmic goiter (also known as Graves' disease) is caused by hyperthyroidism, where there is an overproduction of thyroid hormones.
- This condition increases the metabolic rate, leading to an increased body temperature.
- **Conclusion**: Low body temperature is NOT a characteristic of exophthalmic goiter.

5. **Understand Simple Goiter**:
- Simple goiter is often due to iodine deficiency, leading to an enlargement of the thyroid gland.
- It can be associated with normal or low thyroid hormone levels, but it does not specifically indicate low body temperature.
- **Conclusion**: While it may not directly cause low body temperature, it is not as definitive as the other conditions.

6. **Final Conclusion**:
- Among the four conditions, exophthalmic goiter is the only condition where low body temperature is not a characteristic. Thus, the answer is exophthalmic goiter.

### Answer:
Exophthalmic goiter is the condition where low body temperature is not a characteristic.

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