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Related to benign neoplasm: malignant neoplasm
Etymology: L, benignare + Gk, neos, new, plasma, formation
a localized tumor that has a fibrous capsule, limited potential for growth, a regular shape, and cells that are well differentiated. A benign neoplasm does not invade surrounding tissue or metastasize to distant sites. Some kinds of benign neoplasms are adenoma, fibroma, hemangioma, and lipoma. Also called benign tumor. Compare malignant neoplasm.
Growth not spreading by metastases or infiltration of tissue.
See also: neoplasm
1. a tumor.
2. any new and abnormal growth, specifically one in which cell multiplication is uncontrolled and progressive. Neoplasms may be benign or malignant. Neoplasms of particular organs and of particular cell types are to be found under their individual headings, e.g. pharyngeal, adenocarcinoma.
a neoplasm having none of the characteristics of a malignant neoplasm (see below), i.e. it grows slowly, expands without metastasis, and usually does not recur.
due to extensive necrosis in rapidly growing tumors.
a neoplasm whose cells and organization resemble those of the tissue from which it is growing.
a neoplasm with the characteristics of anaplasia, invasiveness and metastasis.
a neoplasm whose cellular architecture resembles that of some organ in the body.