Parent term(s)
Term with siblings
ethmoidal sinus benign neoplasm +
frontal sinus benign neoplasm +
sphenoidal sinus benign neoplasm +
maxillary sinus benign neoplasm +
ethmoidal sinus benign neoplasm +
frontal sinus benign neoplasm +
sphenoidal sinus benign neoplasm +
denotes an 'is-a' relationship