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ENT · Thyroid and parathyroid: Bethesda reporting
Sample itemA thyroid nodule fine-needle aspiration is reported as Bethesda category V. What is the approximate risk of malignancy and the usual management?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Suspicious for malignancy, with a risk of about 60 to 80 percent, usually lobectomy or thyroidectomy
The Bethesda system has six categories. Category V (suspicious for malignancy) carries roughly 60 to 80 percent risk and is treated surgically, most often by lobectomy. Category VI is malignant, and category II is benign. Category I is non-diagnostic and requires repeat aspiration.
Option by option
A. Suspicious for malignancy, with a risk of about 60 to 80 percent, usually lobectomy or thyroidectomy (correct)
Correct. Category V is suspicious and is operated.
B. Non-diagnostic, with repeat in 2 days
This describes category I.
C. Malignant in 100 percent so immediate chemotherapy
Category VI is malignant, and chemotherapy is not the main therapy.
D. Benign, with a risk under 3 percent, so follow-up
This describes category II.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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