Difficulty: Medium
Average Score: 71%
Practice
What of the following statements best describes a toxic thyroid adenoma?
Correct answer
D
Rationale
Step 1: Toxic thyroid adenoma is characterized by a benign tumor in the thyroid gland.
Step 2: This tumor produces excessive amounts of thyroid hormones, particularly T3 and T4.
Step 3: The tumor arises from the follicular cells of the thyroid gland.
Step 4: Choice D accurately describes a toxic thyroid adenoma as a benign tumor producing excessive thyroid hormones from follicular cells.
Summary:
Choice A is incorrect because it describes autoimmune thyroid disease, not a toxic adenoma.
Choice B is incorrect as it describes a malignant tumor, not a benign one.
Choice C is incorrect as it describes thyroiditis, not a toxic adenoma.
Step 2: This tumor produces excessive amounts of thyroid hormones, particularly T3 and T4.
Step 3: The tumor arises from the follicular cells of the thyroid gland.
Step 4: Choice D accurately describes a toxic thyroid adenoma as a benign tumor producing excessive thyroid hormones from follicular cells.
Summary:
Choice A is incorrect because it describes autoimmune thyroid disease, not a toxic adenoma.
Choice B is incorrect as it describes a malignant tumor, not a benign one.
Choice C is incorrect as it describes thyroiditis, not a toxic adenoma.