hamartoma


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hamartoma

 [ham″ahr-to´mah]
a benign tumorlike nodule composed of an overgrowth of mature cells and tissues normally present in the affected part, but often with one element predominating.

ham·ar·to·ma

(ham'ahr-tō'mă),
A focal malformation that resembles a neoplasm, grossly and even microscopically, but results from faulty development in an organ; composed of an abnormal mixture of tissue elements, or an abnormal proportion of a single element, normally present in that site, which develop and grow at virtually the same rate as normal components, and are not likely to result in compression of adjacent tissue (in contrast to a neoplasm).
[G. hamartion, a bodily defect, + -oma, tumor]

hamartoma

(hăm′ăr′tō′mə)
n.
A benign tumor composed of an abnormal mixture of normal tissue elements that develop and grow at the same rate as adjacent tissue, resulting from faulty development in an organ.

ham′ar′tom′a·tous (-tŏm′ə-təs, -tō′mə-təs) adj.

hamartoma

A tumor-like, non-neoplastic disordered proliferation of mature tissues that are native to a site of origin–eg, exostoses, nevi and soft tissue hamartomas; although most hamartomas are benign, some histologic subtypes–eg, neuromuscular hamartoma, may proliferate aggressively. See Mesenchymal cystic hamartoma, Sclerosing epithelial hamartoma, Sclerosing metanephric hamartoma.

ham·ar·to·ma

(ham'ahr-tō'mă)
A focal malformation that resembles a neoplasm, grossly and even microscopically, but that results from faulty development, with a disproportion or abnormal mixture of tissue elements normally present at the site; develops and grows at virtually the same rate as normal tissue and is not likely to compress or invade adjacent structures (in contrast to a neoplasm).
[G. hamartion, a bodily defect, + -oma, tumor]

hamartoma

A rare BENIGN tumour of mixed normal cells that can affect any organ and that contains tissues normal to the organ. A lung hamartoma containing bronchial lining cells, connective tissue and cartilage, may cause obstruction of a BRONCHUS. As a rule, hamartomas do little harm.

ham·ar·to·ma

(ham'ahr-tō'mă)
A development focal malformation that resembles a neoplasm, grossly and even microscopically.
[G. hamartion, a bodily defect, + -oma, tumor]
References in periodicals archive ?
None of the FNA finding predicted the final pathology of hamartoma. Of patients with a core biopsy (n=9), the core biopsy revealed fibrolipomatous cell fragments in 3 patients (33.3%) that was concordant with a diagnosis of hamartoma.
(3) Although present in the coccygeal region, coccygeal polypoid eccrine nevi, hamartomas with increased number or size of eccrine glands with no vascular proliferation, are not known to be associated with spinal dysraphism.
Riley and Noah, both seven, may need surgery for the hypothalamic hamartoma but their parents may be forced to go abroad for treatment as the surgery is not yet available on NHS.
Another case of 11-monthold boy presenting with mesenchymal hamartoma had AFP levels of 3829 ng/mL.
Imaging finding of intrahepatic bile duct adenoma (peribiliary gland hamartoma): a case report and literature review.
En el caso de la apariencia quistica, se incluyen el hamartoma mesenquimal, hepatoblastoma quistico, quiste hidatidico, metastasis necrotica o la degeneracion quistica de alguna neoplasia solida.
Surgical management of a retro-rectal cystic hamartoma (tailgut cyst) using a trans-rectal approach: a case report and review of the literature.
Diffuse ganglioneuromatosis of the GI tract is associated with other tumors and syndromes, including PTEN hamartoma syndrome, MEN 2b, NF1 (von Recklinghausen's disease), and neurogenic sarcoma [16].
Krous, "Second report of a translocation involving 19q13.4 in a mesenchymal hamartoma of the liver," Cancer Genetics and Cytogenetics, vol.
The term hamartoma is used to describe a nonneoplastic, abnormal, and haphazard overgrowth of conglomerates of mature cells and tissues indigenous to the anatomic site from which it occurs, often with one predominating element [1, 2].
Splenic hamartoma (SH), which was first described in 1861 by Rokitansky, is a rare benign lesion of the spleen (1).