Final answer:
An abnormal growth of cells or tumor on a gland is called a neoplasm. Neoplasms can be either benign or malignant.
Step-by-step explanation:
An abnormal growth of cells or tumor on a gland is called a neoplasm. Neoplasms can be either benign or malignant. A benign neoplasm does not invade other tissues and does not form metastases, while a malignant neoplasm is the actual cancer and can invade other tissues and form metastases.