Question:
Psammoma bodies are seen in all of the following EXCEPT?
Psammoma bodies are seen in all of the following EXCEPT?
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Psammoma bodies favour papillary and serous tumours; pick the follicular one out.
Updated On: Jun 24, 2026
- Follicular carcinoma of thyroid
- Papillary carcinoma of thyroid
- Cystadenocarcinoma
- Meningioma
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The Correct Option is A
Solution and Explanation
Step 1: Psammoma bodies are round, laminated, concentric calcified structures formed at sites of cell turnover and often within papillary architecture.
Step 2: Classic tumours containing psammoma bodies include papillary carcinoma of the thyroid, papillary serous cystadenocarcinoma of the ovary, meningioma, and papillary renal cell carcinoma. A useful mnemonic is the papillary or serous pattern.
Step 3: Papillary carcinoma of the thyroid contains psammoma bodies in its papillae, cystadenocarcinoma (serous ovarian) and meningioma also characteristically show them.
Step 4: Follicular carcinoma of the thyroid is characterised by capsular and vascular invasion of follicular architecture and does NOT contain psammoma bodies.
Conclusion: The exception is follicular carcinoma of thyroid, so the answer is option 1.
Step 2: Classic tumours containing psammoma bodies include papillary carcinoma of the thyroid, papillary serous cystadenocarcinoma of the ovary, meningioma, and papillary renal cell carcinoma. A useful mnemonic is the papillary or serous pattern.
Step 3: Papillary carcinoma of the thyroid contains psammoma bodies in its papillae, cystadenocarcinoma (serous ovarian) and meningioma also characteristically show them.
Step 4: Follicular carcinoma of the thyroid is characterised by capsular and vascular invasion of follicular architecture and does NOT contain psammoma bodies.
Conclusion: The exception is follicular carcinoma of thyroid, so the answer is option 1.
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