preferred_name: Malignant neoplasm of auditory tube, middle ear, and mastoid air cells
preferred_name_lc: malignant neoplasm of auditory tube, middle ear, and mastoid air cells
label: Malignant neoplasm of auditory tube, middle ear, and mastoid air cells
label_lc: malignant neoplasm of auditory tube, middle ear, and mastoid air cells