A primary or metastatic malignant neoplasm involving the nasopharynx.
Exposure to second hand tobacco smoke (acute) (chronic)
Passive smoking (acute) (chronic)
Malignant neoplasm of superior wall of nasopharynx
Malignant neoplasm of posterior wall of nasopharynx
Malignant neoplasm of lateral wall of nasopharynx
Malignant neoplasm of anterior wall of nasopharynx
Malignant neoplasm of overlapping sites of nasopharynx
Malignant neoplasm of nasopharynx, unspecified