Many people hear the word “tumor” and immediately think “ cancer.” But many neoplasms are benign (noncancerous). Your healthcare provider can explain what having a tumor means for your health …

Nov 21, 2025 · Tumour, a mass of abnormal tissue that arises without obvious cause from preexisting body cells, has no purposeful function, and is characterized by a tendency to independent and …

In the British Commonwealth, the spelling tumour is commonly used, whereas in the U.S. the word is usually spelled tumor. In its medical sense, tumor has traditionally meant an abnormal swelling of the …

Jul 29, 2024 · All tumors are caused by abnormal, often excessive, cell growth. A malignant neoplasm, or cancerous tumor, usually grows rapidly and can spread into other parts of the body, such as the …

Tumors may be benign (not cancer) or malignant (cancer). Benign tumors may grow large but do not spread into, or invade, nearby tissues or other parts of the body. Malignant tumors can spread into, …

Feb 3, 2025 · Cancer arises from the transformation of normal cells into tumour cells in a multi-stage process that generally progresses from a pre-cancerous lesion to a malignant tumour.

Jul 22, 2025 · Normally, the body creates new cells to replace old ones, and damaged cells are programmed to die. When this balance is disturbed, a tumor can form. The term “tumor” can be …

Dec 8, 2025 · What’s a tumour? The Oxford dictionary defines a tumour as “any abnormal swelling in or on a part of the body”. They develop in nearly any part, including fat, muscle, bone, nerves and glands.

Tumours can be benign or malignant (cancerous). Cancer cells can grow and divide to create more cells and will eventually form a malignant tumour. Learn more.

Nov 16, 2023 · There are three main types of tumor; benign, premalignant, and malignant. If someone has a malignant tumor, it is cancerous. Other types of tumor are not cancerous. This article …