Primary diagnosis of ameloblastoma by fine-needle aspiration: A report of two cases

Ameloblastoma is the most common epithelial odontogenic turner, comprising 1% of tumors and cysts arising in the jaws. We describe two cases of amelob lastoma of the jaw diagnosed by fine-needle aspiration cytology. The patien ts presented with swelling in the parotid region. Cytological examination o f the particulate and sticky bloodstained fluid obtained on aspiration show ed tightly packed groups of basaloid cells arranged in nests with rounded e dges. Palisading epithelial cells and squamous cells with spherical keratin ized bodies were the distinctive cytological features. Histologic examinati on confirmed the presence of ameloblastoma. (C) 2000 Wiley-Liss, Inc.