
Malignant neoplasm of nasal cavities middle ear and accessory sinuses

Malignant neoplasm of nasal cavities

Malignant neoplasm of auditory tube middle ear and mastoid air cells

Malignant neoplasm of maxillary sinus
- A primary or metastatic malignant neoplasm involving the maxillary sinuses.

Malignant neoplasm of ethmoidal sinus
- A primary or metastatic malignant neoplasm involving the ethmoid sinuses.

Malignant neoplasm of frontal sinus

Malignant neoplasm of sphenoidal sinus

Malignant neoplasm of other accessory sinuses

Malignant neoplasm of accessory sinus unspecified
- A primary or metastatic malignant neoplasm involving the paranasal sinuses.