preferred_name: Obliteration of the sinuses, middle ear cavities, internal acoustic canals, and optic nerve canals
preferred_name_lc: obliteration of the sinuses, middle ear cavities, internal acoustic canals, and optic nerve canals
label: Obliteration of the sinuses, middle ear cavities, internal acoustic canals, and optic nerve canals
label_lc: obliteration of the sinuses, middle ear cavities, internal acoustic canals, and optic nerve canals