osteoid


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osteoid

 [os´te-oid]
1. resembling bone.
2. the organic matrix of bone; young bone that has not undergone calcification.
osteoid osteoma a benign hamartomatous lesion of cortical bone in young persons. There are small sclerotic bone-forming areas visible on technetium diphosphate bone scan. The small central nidus produces large amounts of prostaglandin. There is often night pain, which may be responsive to nonsteroidal antiinflammatory drugs. Lesions may be excised in toto or may be treated with nonsteroidal antiinflammatory drugs, and often undergo involution in 5 to 7 years.

os·te·oid

(os'tē-oyd),
1. Relating to or resembling bone. Synonym(s): ossiform
2. Newly formed organic bone matrix before calcification.
[osteo- + G. eidos, resemblance]

osteoid

/os·te·oid/ (os´te-oid)
1. resembling bone.
2. the organic matrix of bone; young bone that has not undergone calcification.

osteoid

(ŏs′tē-oid′)
adj.
Resembling bone.
n.
The bone matrix, especially before calcification.

osteoid

[os′tē·oid]
Etymology: Gk, osteon + eidos, form
pertaining to or resembling bone.

os·te·oid

(os'tē-oyd)
1. Relating to or resembling bone.
2. Newly formed organic bone matrix before calcification.
[osteo- + G. eidos, resemblance]

osteoid

Resembling bone.

osteoid

connective tissue of bone, formed of collagen fibres in a polysaccharide ground substance; made rigid (mineralized) by deposition of calcium hydroxyapatite crystals

os·te·oid

(os'tē-oyd)
1. Relating to or resembling bone.
2. Newly formed organic bone matrix before calcification.
Synonym(s): osteosarcoma.
[osteo- + G. eidos, resemblance]

osteoid (os´tēoid),

n the initial bony matrix laid down by the osteoblasts. It is later calcified, with inclusion of osteoblasts as osteocytes within lacunae, into bone.

osteoid

1. resembling bone.
2. the organic matrix of bone; young bone that has not undergone calcification.
References in periodicals archive ?
7) Among subtypes of intramedullary osteosarcoma, osteoblastic osteosarcoma generally demonstrates the greatest degree of sclerosis/osteoid formation, while chondroblastic and fibroblastic osteosarcomas may demonstrate areas of lucency juxtaposed with areas of osteoid production.
In the past, osteoid osteoma was treated surgically in a procedure that involved scraping the tumour from the bone or removing the affected part of the bone.
Our team set out to provide a noninvasive treatment option for children with osteoid osteoma and we're very pleased with the success of the first two treatments," said Karun Sharma, MD, PhD, Director of Interventional Radiology at Children's National and Principal Investigator for the osteoid osteoma trial.
High power of the edge of the tumour shows osteoid with osteoblasts on the left and mitotically active blastemal cells at the centre.
InSightec Ltd, the leader in MRI guided Focused Ultrasound therapy, has announced that its ExAblate systems have received an extended European CE Mark for the local treatment of cancerous and benign primary and secondary bone tumors, including but not limited to multiple myeloma, bone metastases, osteoid osteoma as well as facet joint back pain, The CE mark applies to the ExAblate 2000 and 2100 as well as the ExAblate 2100 Conformal Bone System.
Histomorphometric parameters of medullary bone diameter, trabecular bone area, osteoid area, mineralized bone area, and osteoblast area were measured.
Surgical resection of the osteoid osteoma through a direct incision located at the sacroiliac joint brought immediate relief of the symptoms, and a pathological examination after en bloc surgical excision revealed the diagnosis (Figures 3 and 4).
As described previously sections were stained with Goldner dye to analyse osteoid formation, granulomatous tissue, bone resorption and various cell types including macrophages, foreign-body giant cells and fibroblasts.
The bone trabeculae were lined for the most part by a rim of osteoblasts with a zone of osteoid production noted.
Such responsiveness is predominantly associated with activation of p38 MAPK-dependent signal pathways to up-regulate the transcription factor levels of Runx2 and Osx and subsequent induce osteoid gene expression in MC3T3-E1 cells.
in the study of Douglas S Ross, MD/IE)There was no change in the osteoid volume in hyperthyroidism.
Micro-CT images from the animal study showed significant differences in osteoid growth after 4 and 8 weeks between the bioplotted and hybrid scaffolds (Fig.