osteoma


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to osteoma: osteosarcoma

osteoma

 [os″te-o´mah]
a tumor, benign or malignant, composed of bony tissue; a hard tumor of bonelike structure developing on a bone (homoplastic osteoma) or other structures (heteroplastic osteoma).
Symptoms. Symptoms of bone cancer are pain, swelling, and disability in the area of the diseased bone. The pain at first is mild, stops and starts again, and then becomes increasingly severe. Swelling may appear soon after the first signs of pain, but often it cannot be seen until later. The disability may affect a nearby joint, such as the knee, shoulder, or hip. There may also be a hard, painful lump over which the skin moves freely. The skin temperature in the area may be slightly elevated.
Diagnosis and Treatment. Diagnosis of bone tumor is made after examination of x-ray film and a microscopic study of the suspected tissue. Malignant tumors can be treated by radiotherapy and surgery during the early stage of development. The prognosis for these tumors is grave, however. Hormone therapy and medication can also be helpful in certain types of the disease.
osteoma cu´tis progressive dermal ossification during childhood, with development of hard, round to irregular nodules representing islands of heterotopic bone within the dermis or subcutis, followed by coalescence of the lesions into plaques, and later by invasion of ossification into deep connective tissues. It may be sporadic or inherited as an autosomal dominant trait. Called also progressive osseous heteroplasia.
osteoma du´rum (osteoma ebur´neum) one containing hard bony tissue.
osteoma medulla´re one containing marrow spaces.
osteoid osteoma see osteoid osteoma.
osteoma spongio´sum (spongy osteoma) one containing cancellated bone.

os·te·o·ma

(os'tē-ō'mă),
A benign, slow-growing mass of mature, predominantly lamellar bone, usually arising from the skull or mandible.
[osteo- + G. -oma, tumor]

osteoma

(ŏs′tē-ō′mə)
n. pl. osteo·mas or osteo·mata (-mə-tə)
A benign tumor composed of bony tissue, often developing on the skull.

os·te·o·ma

(os'tē-ō'mă)
A benign slow-growing mass of mature, predominantly lamellar bone, usually arising from the skull or mandible.
[osteo- + G. -oma, tumor]

osteoma

A BENIGN tumour of bone, largely confined to the skull and jawbone. Osteomas often arise in a sinus or in the ORBIT, are slow-growing and can be removed if causing cosmetic or other problems.

os·te·o·ma

(os'tē-ō'mă)
Benign, slow-growing mass of mature, predominantly lamellar bone, usually arising from the cranium or mandible.
[osteo- + G. -oma, tumor]
References in periodicals archive ?
Ablations in bone benefit from the oven effect as the bone cortex traps heat within the medulla contributing to complete necrosis of the nidus in the case of osteoid osteoma. A standard safety procedure is to maintain a distance of 1cm from the probe to vital structures such as nerves, blood vessels and skin.
Incidentally detected middle ear osteoma: two case reports and literature review.
It mostly involves spine (40-50%).9 Pain is the most common complaint having similar behaviour as with osteoid osteoma. In the spine, patient may develop scoliosis or neurological symptoms.
A prospective study of paranasal sinus osteomas in 1,889 cases: Changing patterns of localization.
Osteoid osteoma often presents during the second or third decade of life.
Table 2 Common Locations of Pediatric Bone Lesions Epiphyseal Lesions Metaphyseal Lesions Diaphyseal Lesions Chondroblastoma Enchondroma Osteoid Osteoma Aneurysmal Bone Cyst Aneurysmal Bone Cyst Eosinophilic Granuloma Osteomyelitis Fibrous Dysplasia Osteofbrous Dysplasia Giant Cell Tumor of Bone Osteochondroma Ewing's Sarcoma (older) Unicameral Bone Cyst Nonossifying Fibromas Osteomyelitis Osteosarcoma Please Note: Illustration(s) are not available due to copyright restrictions.
The other 2 cases were benign entities, a bone cyst and an osteoid osteoma, which were diagnosed as a benign spindle cell lesion and a benign osteoblastic lesion, respectively.
Lai, "Long-term follow-up of intravitreal ranibizumab for the treatment of choroidal neovascularization due to choroidal osteoma," Case Reports in Ophthalmology, vol.
Here, we report a case of atypical dome-shaped choroidal osteoma diagnosed by a histopathological finding from the surgically extracted tumor tissue.
Key words: Osteoma, osteoid; Scapula--pathology; Shoulder joint--pathology; Pain--therapy; Case reports