Tumor (Neoplasm): Types, Symptoms & Treatment - Cleveland Clinic
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 (including how serious it is) based on the type. The three main types of tumors are:
Tumour | Causes, Diagnosis & Treatment | Britannica
2025年1月3日 · 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 unrestrained growth. Tumours are quite different from inflammatory or other swellings because the cells in tumours are
Neoplasm - Wikipedia
In modern English, tumor (non-US spelling: tumour) is used as a synonym for a neoplasm (a solid or fluid-filled cystic lesion that may or may not be formed by an abnormal growth of neoplastic cells) that appears enlarged in size.
Definition of tumor - NCI Dictionary of Cancer Terms
An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. 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, or invade, nearby tissues.
Tumor: MedlinePlus Medical Encyclopedia
A tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous (benign). In general, tumors occur when cells divide and grow excessively in the body. Normally, the body controls cell growth and division. New cells are created to replace older ones or to perform new functions.
Tumors: Benign, premalignant, and malignant - Medical News Today
2023年11月16日 · 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 discusses the...
Tumor: Cancerous Types, Biomarkers, Gene Changes - Verywell …
2024年7月29日 · A tumor, or neoplasm, is abnormal tissue that develops because of excessive cell growth. Tumors can be either benign (noncancerous) or malignant (cancerous and likely to spread to other parts of the body). Illustration by Julie Bang for Verywell Health. When Is a Tumor Cancer? All tumors are caused by abnormal, often excessive, cell growth.
What Is Cancer? - NCI - National Cancer Institute
2021年10月11日 · When cells grow old or become damaged, they die, and new cells take their place. Sometimes this orderly process breaks down, and abnormal or damaged cells grow and multiply when they shouldn’t. These cells may form tumors, which are lumps of tissue. Tumors can be cancerous or not cancerous (benign).
Tumor (Neoplasm): Types, Signs, Complications - Health
2023年6月12日 · A tumor, also known as a neoplasm, is an abnormal lump or growth that forms in or on the body. This abnormal mass of tissue forms when cells grow and divide too quickly or …
Cancer - World Health Organization (WHO)
2022年2月3日 · Many cancers can be cured if detected early and treated effectively. Cancer is a generic term for a large group of diseases that can affect any part of the body. Other terms used are malignant tumours and neoplasms.