MONDO_0002889 (orbital cancer) is a primary or metastatic malignant neoplasm involving the orbit. Also known as: cancer of orbit of skull, malignant neoplasm of orbit, malignant neoplasm of orbit of skull, malignant neoplasm of the orbit, malignant orbit neoplasm, malignant orbit of skull neoplasm, malignant orbit tumor, malignant orbit tumour.