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.
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.
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).
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).
These abnormalities are caused by the failure of the osteoid tissue
to calcify in growing bones, leaving them soft and pliable.
The mandibular bone of group 1 with JD presented large amounts of osteoid tissue
compared with its control.
Giant cells were admixed with osteoid tissue
(Figure 3, A) or with mitotically active mononuclear cells (Figure 3, B).
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.