a) Nuclear palisading
b) Keratin pearls
c) Psammoma bodies
d) Foam cells
The correct answer is A. Nuclear palisading.
• In nodular basal cell carcinoma, the tumor cells typically have large, hyperchromatic, oval nuclei with little cytoplasm and nests of tumor cells show peripheral cell palisading.
• Keratin pearls are found in squamous cell carcinoma, while Psammoma bodies are concentric lamellated structures found in papillary thyroid carcinoma, meningioma, papillary serous cystadenocarcinoma of the ovary.
• Foam cells are found in verruciform xanthoma.
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