chondroblastoma वाक्य
उदाहरण वाक्य
मोबाइल
- Complications are less common in patients presenting with chondroblastoma in accessible areas.
- Somatic mutations in the H3F3B gene are associated with chondroblastoma.
- Chondroblastoma is very uncommon, accounting for only 1-2 % of all bone tumors.
- The highly heterogeneous nature of the tumor makes classification particularly difficult especially considering the origins of chondroblastoma.
- Overall, the success and method of treatment is highly dependent upon the location and size of the chondroblastoma.
- The prevalence of metastatic chondroblastoma, however, is quite low and is believed to be less than 1 %.
- Chondroblastoma shows a predilection towards the male sex, with a ratio of male to female patients of 2 : 1.
- These findings suggest that chondroblastoma is derived from a mesenchymal cell undergoing chondrogenesis via active growth-plate signaling pathways ( see Endochondral ossification ).
- An aneurysmal bone cyst can arise from a pre-existing chondroblastoma, a chondromyxoid fibroma, an osteoblastoma, a giant cell tumor, or fibrous dysplasia.
- Other imaging techniques involve bone scans, which may be helpful in determining the anatomical boundaries, associated edema, or biological activity of the chondroblastoma, respectively.
- There are two opposing views on the nature of chondroblastoma, one favoring an plasticity of mesenchymal cells when set into different microenvironments and static approaches used in literature.
- Romeo " et al " has noted that chondroblastoma arising in long bones mainly affects the epiphyses, while in other locations it is close to ossification centers.
- In a publication by Turcotte et al . it was found that the average duration of symptoms for patients with chondroblastoma was about 20 months, ranging from 5 weeks to 16 years.
- Overall, patients with more classical chondroblastoma ( appearing in long bones, typical presentation ) have better prognoses than patients with atypical chondroblastoma ( flat bones, skull, etc . ).
- Overall, patients with more classical chondroblastoma ( appearing in long bones, typical presentation ) have better prognoses than patients with atypical chondroblastoma ( flat bones, skull, etc . ).
- Additionally, rare prevalence of chondroblastoma in proliferation among the cells in the proliferating / pre-hypertrophic zone ( cellular-rich area ) versus the hypertrophic / calcifying zone ( matrix-rich area ).
- While recurrence is the most common complication of chondroblastoma other issues include post-surgery infection, degenerative joint disease, pathological fractures, failure of bone grafts, pre-mature epiphyseal closure, functional impairment, and malignant transformation.
- Romeo " et al " have observed chondroblastoma neoplasms to be composed of mesenchymal cells that have completed normal chondrogenesis along with the production of osteoid and collagen I that could be the result of transdifferentiation of chondrocytes towards osteoblasts.
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