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Expression of Ki67, CD31, CD68 and P53 in Peripheral and Central Giant Cell Granuloma of the Jaws

Introduction: Giant cell granuloma is a relatively common lesion in oral cavity. Central giant cell granuloma usually treated with surgical excision with good prognosis. However in few cases, the lesion exhibits more aggressive behaviour, high recurrence rate and poor prognosis. It is difficult to identify these cases based on histological features so the need for diagnostic markers is of paramount importance to spare patients unwanted effects.

Aim: To investigate expression of Ki67, CD31, CD68 and P53 proteins in peripheral and central (aggressive and non-aggressive) giant cell granuloma and whether their expression level can be used to differentiate between aggressive and non-aggressive types.

Material and methods: A total of 33 cases; 15 cases of peripheral giant cell granuloma, 10 cases of nonaggressive central giant cell granuloma and 8 cases of aggressive central giant cell granuloma were tested for Ki64, CD31, CD68 and P53 expression using immunohistochemical staining.

Results: Ki67 was expressed in all study cases with significantly higher levels in aggressive variant. CD31 expressed in all cases with significantly higher levels in peripheral giant cell granuloma. CD68 was expressed in all cases with no significant differences. P53 was only identified in central giant cell granuloma with significantly higher levels in aggressive type.

Conclusion: Ki67 and P53 expression might be useful markers to identify aggressive central giant cell granuloma.


Radien HM El-Attar and Omneya M Wahba

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