Histological findings such as the amount of fibrous tissue, cartilaginous tissue,
osteoid tissue ratios, and level of bone healing graded according to Huo scores were compared using the Mann Whitney U test.
It is characterized by architectural deterioration of
osteoid tissue and reduced bone density, making the bones fragile.
Quantification of the percentage of
osteoid tissue on bone lamellae surface was performed using ImageJ software and was determined as area of the
osteoid tissue section/(area of the mineralized bone lamellae section x area of the
osteoid tissue section).
Rat alveolar bone is dense and it has no osteons and marrow spaces while there is less amount of
osteoid tissue along the bone surface of alveolus as compare to humans.21 In few studies, it has been reported that acid mucopolysaccaride is less in the rat bone.
Aneurysmal bone cyst (ABC) is a rare benign bone tumor that contains blood-filled cavernous spaces separated by septa containing
osteoid tissue and osteoclast giant cells [1-3].
Adhesion of capillary buds and perivascular osteogenic cells forming the layers of
osteoid tissue is noted on the implant surface.
Osteosarcoma (OS) is an mesenchymal malignant bone tumor characterized by formation of disorganized immature woven bone or
osteoid tissue with a reported incidence of 1:100,000 per year.
New
osteoid tissue was observed in the pore structure, and osteoblast infiltration was seen on the surface of the implant.
In addition, DKO model provides similarities in X-ray analysis with human OS by revealed sunburst pattern which indicate
osteoid tissue (osseous before calcification stage) (24).
It is composed of
osteoid tissue and is surrounded by a halo of reactive hyperostosis.
These radiographic changes have been ascribed to failing mineralization of
osteoid tissue leading to increased thickness of growth plate and bending of long bones resulting into lameness and inability to bear weight properly (Rosol and Capen, 1997).Thickening of costochondral junction was also evident in a few chest radiographs (Fig.
Osteoblastic osteosarcomas accounted for 17.64% (3/17) of all cases, being characterized by a major component of
osteoid tissue with anaplastic and pleomorphic malignant cells characterized by vesiculated nuclei and large nucleoli (7).