ENT Paranasal sinuses are affected by both benign and malignant neoplasms. Commonest benign tumour of paranasal sinuses are: A Angiofibroma B Adenocarcinoma C Osteomas D Burkitt's lymphoma 💡 Explanation Paranasal sinuses are affected by both benign and malignant neoplasms. Commonest benign tumour of paranasal sinuses are: ✓ Correct Answer: C. Osteomas