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 ?
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).
These lesions also show partial or extensive calcification, with some depicting features similar to osteoid osteomas of a central nidus of sclerotic bone surrounded by a radiolucent halo.
In contrast, the osteoid matrix in the bioplotted scaffolds was not well distributed, and no new bone formation was observed.
Histological examination revealed absence of any atypia or increased mitotic activity excluded malignancy, while the absence of osteoid formation and the prominent collagenization, helped distinguish the lesion from non-ossifying fibroma or odontogenic fibroma.
4]) ion product is responsible for the increase in unmineralized osteoid or cartilaginous matrix, which is the hallmark of rickets (32).
For at least a decade, RFA has been used for patients with osteoid osteomas, benign bone-forming tumors that affect the cortices of the long bones in children and adolescents.
After resorption is complete, osteoblasts move into the cavity and commence laying down osteoid (protein matrix).
The mandibular bone of group 1 with JD presented large amounts of osteoid tissue compared with its control.
Rickets: A disease due to vitamin-D deficiency and characterized by overproduction and deficient calcification of osteoid tissue, with associated skeletal deformities and disturbances in growth.
Different types of renal osteodystrophy were diagnosed according to the amount of osteoid, the presence of fibrosis, and the BFR: normal histology = osteoid area <12%, no fibrosis, and BFR 97-613 [[micro]m.
Iliac crest bone biopsy revealed no osteomalacia but moderate osteoporosis with normal trabecular volume but decreased osteoid surfaces and osteoid volume and increased mineral apposition rate (Table II).