This abnormal growth usually forms a mass, which may be called a tumour or tumor. ICD-10 classifies neoplasms into four main groups: benign neoplasms, in...

A brain tumor occurs when abnormal cells form within the brain. There are two main types of tumors: malignant (cancerous) tumors and benign (non-cancerous)...

invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal...

Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. They most commonly occur in the intestine...

the term is typically used when referring to metastasis by a cancerous tumor. The newly pathological sites, then, are metastases (mets). It is generally...

tumors into cartilage tumors, osteogenic tumors, fibrogenic tumors, vascular tumors of bone, osteoclastic giant cell-rich tumors, notochordal tumors,...

A pelvic tumor is any one of numerous tumors that occur in the pelvis. Within the pelvis, these tumors may involve specific organs, or occupy intra-organ...

Warthin's tumor, also known as papillary cystadenoma lymphomatosum, is a benign cystic tumor of the salivary glands containing abundant lymphocytes and...

A benign tumor is a mass of cells (tumor) that does not invade neighboring tissue or metastasize (spread throughout the body). Compared to malignant (cancerous)...

Wilms' tumor or Wilms tumor, also known as nephroblastoma, is a cancer of the kidneys that typically occurs in children (rarely in adults), and occurs...

A primary tumor is a tumor growing at the anatomical site where tumor progression began and proceeded to yield a cancerous mass. Most solid cancers develop...

Tumor antigen is an antigenic substance produced in tumor cells, i.e., it triggers an immune response in the host. Tumor antigens are useful tumor markers...

Ovarian tumors, or ovarian neoplasms, are tumors found in the ovary. They can be benign or malignant (ovarian cancer). They consist of mainly solid tissue...

tumor is a connective tissue tumor with a "myxoid" background, composed of clear, mucoid substance. This tumoral phenotype is shared by many tumoral entities:...

Lung tumors are neoplastic lung nodules. These include: Primary tumors of the lung/pulmonary system: Bronchial leiomyoma, a rare, benign tumor Lung cancer...

A tumor marker is a biomarker that can be used to indicate the presence of cancer or the behavior of cancers (measure progression or response to therapy)...

Bowie (born November 19, 1989), best known by the recording alias Yves Tumor, is an American musician and producer of experimental music, born in Miami...

Tumor necrosis factor (TNF, cachexin, or cachectin; formerly known as tumor necrosis factor alpha or TNF-α) is a cytokine and member of the TNF superfamily...

A tumor suppressor gene (TSG), or anti-oncogene, is a gene that regulates a cell during cell division and replication. If the cell grows uncontrollably...

A papillary tumor is a tumor shaped like a small mushroom, with its stem attached to the epithelial layer (inner lining) of an organ. It consists of papillae...

Askin's tumor is a rare, primitive neuroectodermal tumor which arises from the soft tissues of the chest wall, particularly of the paravertebral region...

A Pancoast tumor is a tumor of the apex of the lung. It is a type of lung cancer defined primarily by its location situated at the top end of either the...

A mastocytoma or mast cell tumor is a type of round-cell tumor consisting of mast cells. It is found in humans and many animal species; it also can refer...

Mutagens, substances that cause cancer can be tumor initiators. Tumor promotion Tumor progression "tumor initiation". National Cancer Institute. Retrieved...

Melanocytic tumors are tumors developed from melanocytes. Melanocytic nevus Melanocytic tumors of uncertain malignant potential Melanoma v t e...

Tumor progression is the third and last phase in tumor development. This phase is characterised by increased growth speed and invasiveness of the tumor...

A Krukenberg tumor refers to a malignancy in the ovary that metastasized from a primary site, classically the gastrointestinal tract, although it can...

or adenocarcinomata /ˌædɪnoʊkɑːrsɪˈnoʊmətə/; AC) is a type of cancerous tumor that can occur in several parts of the body. It is defined as neoplasia...

Tumor hypoxia is the situation where tumor cells have been deprived of oxygen. As a tumor grows, it rapidly outgrows its blood supply, leaving portions...

A carcinoid (also carcinoid tumor) is a slow-growing type of neuroendocrine tumor originating in the cells of the neuroendocrine system. In some cases...