Pathology Which one of the following features is NOT associated with 1° hyperparathyroidism: A Giant cell tumour. B Sharply defined radiolucencies of maxilla and mandible. C Partial loss of lamina dura. D Hypercementosis. 💡 Explanation Which one of the following features is NOT associated with 1° hyperparathyroidism: ✓ Correct Answer: D. Hypercementosis.