Malignant Paranasal Sinus Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A primary or metastatic malignant neoplasm involving the paranasal sinuses.

**Synonyms:** - Malignant Accessory Sinus Neoplasm - Malignant Accessory Sinus Tumor - Malignant Neoplasm of Accessory Sinus - Malignant Neoplasm of Paranasal Sinus - Malignant Neoplasm of the Accessory Sinus - Malignant Neoplasm of the Paranasal Sinus - Malignant Paranasal Sinus Tumor - Malignant Tumor of Accessory Sinus - Malignant Tumor of Paranasal Sinus - Malignant Tumor of the Accessory Sinus - Malignant Tumor of the Paranasal Sinus - Malignant neoplasm of accessory sinus, unspecified