Abstract
Introduction: Hybrid lesions are lesions showing the combined histopathological characteristics of two or more previously recognized odontogenic tumours and /cysts of different categories. Hybrid lesions do exist because of close interrelationship of several odontogenic lesions and also because odontogenic tumors and cysts can arise at any stage of odontogenesis. The objective of this study was to present 2 cases of hybrid odontogenic tumour that is composed of adenomatoid odontogenic tumour (AOT) and ameloblastoma.
 Case Reports: 
 Case 1: A 33year old female patient with a bucco-lingual swelling in the left mandibular premolar-molar-ramus regions of 13years duration. The lesion measured about 15x5x3cm, it is non tender. Surgical specimen revealed hybrid lesion of granular cell type ameloblastoma and AOT.
 Case 2: An 18year old female patient with a painless right mandibular molar-ramus swelling of 10years duration. Mandibulectomy specimen measured about 11 cm x 8.5 cm x 5 cm and was found to be hybrid lesion of acanthomatous ameloblastoma and AOT.
 Conclusion: Both cases had a very long clinical duration and showed more buccal bone expansion with barely noticeable lingual bone expansion. With such clinical scenarios, a suspicion of hybrid tumour should be made.
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