hamartoma

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hamartoma

[‚ha·mər′tō·mə]
(medicine)
An abnormal condition resulting in the formation of a mass of tissue of disproportionate size and distribution but composed of the normal tissue of the region.
References in periodicals archive ?
Because they are composed of abnormal cells and tissue proliferations found in the location of their origin, here the tonsil, we agree that these tumors are reasonably hamartomatous (3-7).
They form a heterogeneous group of hamartomatous lesions, benign and malign tumors.
1998) Criteria Age at Onset Major Facial angiofibroma Infancy to adulthood Ungual fibroma Adolescence to adulthood Shagreen patch Childhood Hypomelanotic macule Infancy to childhood Cortical tuber Fetal life Subependymal nodule Childhood to adolescence Subependymal giant Childhood to adolescence cell tumor Retinal hamartoma Infancy Cardiac rhabdomyoma Fetal life Renal angiomyolipoma Childhood to adulthood Lymphangioleiomyomatosis Adolescence to adulthood Minor Multiple pits in dental enamel Hamartomatous rectal polyps Bone cysts Cerebral white-matter radial migration lines Gingival fibromas Nonrenal hamartoma Retinal achromic patch "Confetti" skin lesions Multiple renal cysts Note.
epithelial, lymphoid and germ cell neoplasms; thymic cysts; hyperplasia; and hamartomatous lesions.
Background and Design: Becker nevus (BN), characterized by sharply and irregularly bordered, unilaterally localized, hyperpigmented macules and patches which can go along with hypertrichosis, is a kind of hamartomatous lesion that predominantly affects males 4-6 times more frequently than females.
TS is characterised by hamartomatous lesions involving multiple organs.
We speculate that both bladder diverticulum in the dome and the component of hamartomatous angiomyolipoma in our case was a result of embryogenic malformation.
It has been postulated that solitary neurofibroma is hyperplastic hamartomatous malformations rather than a neoplastic disease [1].
4,5 Histologically metanephric adenoma is also very similar to the metanephric hamartomatous element of nephroblastomatosis.
Lisch nodules are pigmented hamartomatous naevus, (11) which occur from proliferation of melanocytes and fibroblasts.
Majority (78%) of polyps were in the rectosigmoid colon and all were juvenile hamartomatous polyps except two which were adenomatous polyps.