Mast Cell Concentrations in Peripheral and Central Giant Cell Granulomas: Is there any Angiogenetic Role?

  • Farhadi, Sareh (Department of Oral and Maxillofacial Pathology, Dental Branch of Tehran, Islamic Azad University) ;
  • Shahsavari, Fatemeh (Department of Oral and Maxillofacial Pathology, Dental Branch of Tehran, Islamic Azad University) ;
  • Taleghani, Ferial (Department of Periodontology, Faculty of Dentistry, Shahed University) ;
  • Komasi, Elaheh (Private Practice)
  • Published : 2016.03.07


Background: In the maxillofacial region, giant cell granulomas occur in 2 clinical forms, central and peripheral. Despite histopathological similarity between these 2 forms totally different clinical behaviors have been reported. The present study was undertaken to compare mast cell and vascular concentrations in these pathologic lesions. Materials and Methods: In this cross-sectional descriptive study, 20 pathological samples of central giant cell granuloma (CGCG) and 20 samples of peripheral giant cell granuloma (PGCG) were selected and examined through toluidine blue staining for mast cell assessment and immunohistochemical staining by VEGEF antibody for comparing the number of mast cells. T-test, chi-squared test and backward multivariate linear regression were used for statistical analysis using SPSS 20. Statistical significance was set at P<0.05. Results: This study showed significantly greater VEGF expression and mast cell concentrations in CGCG compared to PGCG cases. Also there was a significant correlation between VEGF expression and the concentration of mast cells. No relation was found between age, sex and site of the lesion and concentration of mast cells or VEGF expression. Conclusions: It is feasible that higher concentrations of mast cells in CGCG versus PGCG samples might lead to more aggressive clinical behavior via vascular proliferation and angiogenesis. However, other biologic mechanisms should be considered in this situation.


Central giant cell granuloma;peripheral giant cell granuloma;mast cells;angiogenesis;VEGF


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