| 1 | Dural enhancement with enhancement in adjacent paranasal sinus. | |
| 2 | Cancer of the nasal passages affects the paranasal sinuses (the small cavities in the bone surrounding the nose) and the breathing passages in the nose. | |
| 3 | Head and neck cancer includes tumors in the mouth, tongue, nose, sinuses , throat and lymph nodes in the neck. | |
| 4 | A mucocele is an encapsulated fluid collection which occurs due to obstruction of a paranasal sinus ostium. | |
| 5 | MDCT indicated that all of the drowning victims had fluid in the paranasal sinuses and ears and ground-glass opacity in the lungs. |