"Malignant neoplasm: Sphenoidal sinus"@en . "4"^^ . "C31.3" . . . "Tumore maligno del seno sfenoidale"@it . . . "4"^^ . . "Tumore maligno del seno sfenoidale"@it . "Malignant neoplasm: Sphenoidal sinus"@en . "C31.3" . . .