Medicine. = polyp, n. 1. Also figurative.

Medicine. Originally: a fleshy growth within the nasal passages. In later use: a mass arising from an epithelial (esp. mucosal) surface, having…

A tumour formed by an effusion of blood under the skin.

A kind of tumour or sore. Obsolete.

An abnormal, localized collection of air or gas in a part of the body, originally spec. in the scrotum, later esp. in the lung parenchyma (usually…

A collection of clotted blood found in the skin or soft tissues, esp. at the site of phlebotomy or other injury to a blood vessel; a haematoma. Obs…

Medicine. A tumour or swelling, esp. of the eyelid, resembling a mulberry. rare.

a hernia containing gas; a pneumatocele.

A tumour containing extravasated blood.

A sarcoma with a mucoid stroma, or areas of this.

A small swelling or tumour resembling a mulberry.

A fatty tumour.

A tumour-like mass of tuberculous infection. In early use also: †the disease tuberculosis (obsolete).

Originally: †= melanosis, n. 1 (obsolete). Later: a pigmented growth; a tumour containing melanin or composed of melanocytes. Now: spec. (more fully…

Pathology. A tumour resembling pancreatic tissue. Obsolete. rare.

Originally: a tumour having a structure resembling cartilage. In later use usually restricted to mean: a chondroma arising within a bone.

†(a) a neoplasm (obsolete); (b) a lesion, esp. of inflammatory origin, resembling a neoplasm (disused).

Originally: †a medullary or encephaloid tumour (see medullary, adj. 3) (obsolete rare). Later: a tumour of the medullary cavity of bone, or of bone…

A morbid formation or tumour of a cheesy consistence.

‘A bloody tumour or fungus; a swelling containing blood’ (New Sydenham Soc. Lexicon).

A solid or fluid-filled tumour formed by hyperplasia or neoplasia of glandular tissue. In later use also: an enlarged, fluid-filled lymph node.

A pendulous skin lesion seen in neurofibromatosis, consisting of a neurofibroma of the dermis or subcutaneous tissue with hypertrophy of overlying…

Originally: †a tumour of striated muscle; a rhabdomyoma (obsolete). Later: any malignant tumour of muscle.

A benign tumour or tumour-like lesion resulting from (or attributed to) the proliferation, dilatation, or malformation of blood vessels.

Originally: any tumour having a mucoid stroma. Later: spec. a usually benign tumour consisting of scattered stellate or spindle cells in abundant…

‘A term applied to those tumours which resemble both a glioma and a sarcoma’ (New Sydenham Soc. Lexicon 1885).

An abnormal development, or a tumour consisting of lymphoid tissue (New Sydenham Soc. Lexicon).

A tumour having the structure of a lymphatic gland.

A benign tumour of muscular origin; esp. a leiomyoma (fibroid) of the uterus.

A tumour arising in connection with the teeth; (later) spec. a growth resulting from anomalous odontogenesis and consisting of dental tissues of…

Having the appearance or character of a monster; severely malformed; teratoid tumour = teratoma, n.

A tumour, esp. of the gonads, characteristically formed of numerous distinct tissues and believed usually to arise from germ cells or their…

a lipoma containing much fibrous tissue.

Any neoplasm derived (or thought to be derived) from embryonic cells or tissues.

(See quot. 1900.)

used as combining form of modern Latin tubulus tubule, n., instead of the usual tubuli-, comb._form, either before a word of Greek derivation, or…

= plasmacytoma, n.

A tumour of the central nervous system that is composed of astrocytes, varying in degree of malignancy.

Originally: a tumour of odontogenic epithelial cells (adamantoblasts) occurring in the jaws; = ameloblastoma, n. (now rare). In later use: a…

A tumour-like mass resulting from the faulty growth or development of normal cells or tissue.

= plasmacytoma, n.

A malignant tumour of mesothelial origin, associated esp. with exposure to asbestos. In early use also: †any of various tumours believed to be…

A (usually solitary) tumour consisting of plasma cells, located in the bone marrow or other site.

A tumour of neuroblasts; spec. a malignant neoplasm typically occurring in infants and children and associated with the adrenal gland.

Originally: = neuroblastoma, n. (now rare or disused). Later: a neuronal neoplasm; spec. (more fully central neurocytoma, intraventricular neurocytoma…

A neuroendocrine tumour of paraganglionic origin.

A tumour derived from argentaffin neuroendocrine cells, which is found most commonly in the gastrointestinal tract and is usually slow-growing but…

A tumour of oligodendroglial cells.

A tumour composed of mast cells, occurring most frequently in the skin and subcutaneous tissue, and particularly common in certain breeds of dog.

A tumour consisting of chromaffin cells, typically arising in the adrenal medulla and producing catecholamines.

A tumour composed of ameloblasts, occurring in a jaw bone (esp. the mandible).

A tumour derived from a Schwann cell.

Any tumour composed of myoblasts (or cells believed to be myoblasts); esp. (more fully granular cell myoblastoma) a granular cell tumour, a…

A tumour of nerve sheath (Schwann cell) origin; = Schwannoma, n.

Medicine. A primary neoplasm (cf. sense A. 10).

= neurilemmoma, n.

A tumour which secretes vasoactive intestinal polypeptide (VIP).

A prolactin-secreting pituitary tumour.

a tumour secreting excessive quantities of somatostatin.