Journal
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY
Volume 121, Issue 4, Pages 402-411Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.oooo.2015.11.015
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- Deanship of Research/Jordan University of Science and Technology [20110057]
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Objective. To identify cutoff values of markers that correlate with the histopathologic diagnosis of ameloblastic carcinoma (AC) and/or the increased recurrence potential of ameloblastoma (AB). Study Design. Immunohistochemical expression (IHCE) of 9 selected markers were investigated in 18 non-recurrent ameloblastomas (NRABs), 6 recurrent ameloblastomas (RABs), and 5 ACs. Results. No significant difference in IHCE of K6, K8, K16, K17, K18, K19, maspin, or syndecan-1 was observed among study groups. alpha Smooth muscle actin (alpha-SMA) epositive area in central epithelial cells significantly differentiated between AB and AC (P = .017; t - test). Ki-67 score significantly differentiated between AB and AC (P < .005; t - test) and between AC and RAB (P = .015; ANOVA/post hoc). Conclusions. Ki-67 score of 75 cells/HPF (ROC curve) is a potential indicator of AC. Clinical recurrence of AB may be predicted by alpha-SMA expression pattern. Syndecan-1 and alpha-SMA may indicate a higher aggressive potential of AB when expressed in the stroma.
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