Presence of direct invasion by primary malignant neoplasm of nasal cavity and/or nasal sinus to lymphatic vessel and/or small blood vessel
presence of direct invasion by primary malignant neoplasm of nasal cavity and/or nasal sinus to lymphatic vessel and/or small blood vessel
Presence of direct invasion by primary malignant neoplasm of nasal cavity and/or nasal sinus to lymphatic vessel and/or small blood vessel (observable entity)
presence of direct invasion by primary malignant neoplasm of nasal cavity and/or nasal sinus to lymphatic vessel and/or small blood vessel (observable entity)