benign neoplasm

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Related to benign neoplasm: malignant neoplasm

benign 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.

benign 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.

benign neoplasm
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.
neoplasm fever
due to extensive necrosis in rapidly growing tumors.
histoid neoplasm
a neoplasm whose cells and organization resemble those of the tissue from which it is growing.
malignant neoplasm
a neoplasm with the characteristics of anaplasia, invasiveness and metastasis.
organoid neoplasm
a neoplasm whose cellular architecture resembles that of some organ in the body.
transmissible neoplasm
a neoplasm capable of being transmitted between individuals. Includes bovine viral leukosis, avian leukosis, rous sarcoma complex, marek's disease, canine transmissible venereal tumor, squamous cell carcinoma of cattle, and canine viral papillomatosis.
References in periodicals archive ?
Cutaneous angiomyxoma: A benign neoplasm distinct from cutaneous focal mucinosis.
Of the inconclusive cases, five were non-neoplastic proliferative lesions, five were benign neoplasms, three were malignant lesions and three were inflammatory processes.
Odontogenic myxomas are rare, benign neoplasms apparently arising from the mesenchymal portion of the tooth-forming unit known as the dental papillae/dental sac.
In conclusion, intra-articular synovial lipoma in the knee is a rare benign neoplasm.
Specifically, how do you identify the small percentage of masses in premenopausal women that are malignant-and winnow out the benign neoplasms in the postmenopausal population?
It has been suggested that fibrolipoma arise from the maturation of the lipoblastomatosis which is an infiltrative type of benign neoplasm with lobules of immature fat cells separated by connective tissue septa and areas of loose myxoid matrix.
Adult renal neoplasm with a variable admixture of epithelial and mesenchymal components is a distinctive benign neoplasm that has recently been recognized and termed as benign mixed epithelial and stromal tumor (MEST) by Michal and Syrucek (1) and Adsay et al.
Intraneural perineurioma is a benign neoplasm composed exclusively of perineurial cells restricted to the boundaries of a nerve.
A parathyroid adenoma is a benign neoplasm of parathyroid parenchymal cells.
These latter features help distinguish this benign neoplasm from its malignant counterpart, sebaceous lymphadenocarcinoma (to be discussed later in this article).

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