| 释义 |
DictionarySeeosteomaosteomas
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: exostosiscancellous osteomaA soft, spongy tumor. It has thin, delicate trabeculae that enclose large medullary spaces like those in cancellous bone. cavalryman's osteomaAn osteoma of the femur at the insertion of the adductor femoris longus.choroidal osteomaA 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 cutisA benign formation of bone nodules in the skin. dental osteomaA bony outgrowth of the root of a tooth. osteoma durumA very hard osteoma in which the bone is ivory-like. osteoma medullareA bony tumor containing medullary spaces. osteoid osteomaA 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 spongiosumA spongy tumor in the bone. Synonym: osteospongioma |