osteomas


Also found in: Dictionary, Thesaurus, Encyclopedia.

osteomas, osteomata

See osteoma.

osteoma

(os-te-o'ma) (mat-a) plural.osteomataplural.osteomas [ osteo- + -oma]
A bonelike structure that develops on a bone or at other sites; a benign bony tumor. Synonym: exostosis

cancellous osteoma

A soft, spongy tumor. It has thin, delicate trabeculae that enclose large medullary spaces like those in cancellous bone.

cavalryman's osteoma

An osteoma of the femur at the insertion of the adductor femoris longus.

choroidal osteoma

A rare, benign tumor of the eye, composed of calcified bone. On examination of the retina, it appears as an orange-yellow lesion usually located near the optic disc, often bilaterally. It is most often identified in young women. The tumor frequently compromises visual acuity. It can be treated with laser photocoagulation.

osteoma cutis

A benign formation of bone nodules in the skin.

dental osteoma

A bony outgrowth of the root of a tooth.

osteoma durum

A very hard osteoma in which the bone is ivory-like.

osteoma medullare

A bony tumor containing medullary spaces.

osteoid osteoma

A rare benign bone tumor composed of sheets of osteoid tissue that is partially calcified and ossified. The condition occurs esp. in the bones of the extremities of the young.

osteoma spongiosum

A spongy tumor in the bone. Synonym: osteospongioma
References in periodicals archive ?
Osteomas of the temporal bone probably develop in preosseous connective tissue, which has a relatively thick subcutaneous layer and a rich blood supply.
Middle turbinate osteoma presenting with ipsilateral facial pain, epiphora, and nasal obstruction.
Osteomas may cause no disturbance whatsoever or may produce definitive pressure symptoms.
Osteomas usually cause only a cosmetic deformity but, depending on their location, they may cause headaches, localized pain, hearing loss, vertigo, and tinnitus.
17) In cattle, it has been suggested that osteomas originate from metaplastic ossification of inflamed connective tissue.
Initially described by Jaffe, in 1932, (1) and later, again, by Jaffe (2) and Lichtenstein, (3) in 1956, osteoblastoma also was known as giant osteoid osteoma, as its histology resembled that of an osteoid osteoma.
It occurs more rarely than osteoid osteoma but sometimes it can be very difficult to distinguish these two from each other (2).
The clinical and radiographic features of sino-orbital osteomas have been well documented in numerous studies.
Recognition of the osteomas is important because they generally precede the appearance of intestinal polyposis, which has a marked tendency towards malignant degeneration.
Covidien is a recognized leader in RF ablation technology with numerous products in both its vascular and surgical portfolios including: ClosureFast[TM] catheter for the treatment of chronic venous insufficiency, the Cool-tip[TM] RF ablation system for thermal ablation of non-resectable liver tumors and osteoid osteomas, the HALO ablation system used to treat Barrett's esophagus in conjunction with endoscopy by removing precancerous tissue from the gastrointestinal tract, and LigaSure[TM] vessel sealing for permanent vessel occlusion.
Osteoid osteomas are most commonly distributed along the cortex of long bones and occasionally in the posterior elements of the spine.
The reported prevalence of paranasal sinus osteomas ranges from 0.