Question
The given x-ray shows the presence of codman’s triangle which is is seen in cases of osteosarcoma.Calcification in osteosarcoma is due to presence of ?
A. Osteoid matrix
B. Osteoblasts
C. High Calcium levels in serum
D. High calcitonin
Show Answer
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Correct Answer » A
Explanation
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Matrix mineralization (calcification) of tumor matrix
- The pattern of mineralization (calcification) on radiograph may be helpful in identifying tumor matrix.
- Dense, homogenous mineralization (calcification) is typical of osteoid matrix, formed by benign and malignant bone-forming lesions.However, osteoid matrix is not always mineralized.
- Calcified rings and arcs, dense punctate calcification, and flocculent calcification (small, loosely aggregated masses) are pattern of mineralization of chondroid matrix, formed by benign and malignant cartilage forming tumors.
