. "4"^^ . "Tumore maligno del seno etmoidale"@it . "C31.1" . "Malignant neoplasm: Ethmoidal sinus"@en . "Malignant neoplasm: Ethmoidal sinus"@en . "Tumore maligno del seno etmoidale"@it . . . . . "4"^^ . "C31.1" . . .