Malignant Ethmoid Sinus Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A primary or metastatic malignant neoplasm involving the ethmoid sinus.

**Synonyms:** - Malignant Ethmoid Sinus Tumor - Malignant Ethmoidal Sinus Neoplasm - Malignant Ethmoidal Sinus Tumor - Malignant Neoplasm of Ethmoid Sinus - Malignant Neoplasm of Ethmoidal Sinus - Malignant Neoplasm of the Ethmoid Sinus - Malignant Neoplasm of the Ethmoidal Sinus - Malignant Tumor of Ethmoid Sinus - Malignant Tumor of Ethmoidal Sinus - Malignant Tumor of the Ethmoid Sinus - Malignant Tumor of the Ethmoidal Sinus - Malignant neoplasm of ethmoidal sinus