Abstract
Odontogenic tumours and cysts have a characteristic presentation, histopathologically and clinically. The diagnostic criteria and nomenclature are distinct as elaborated in 2017 WHO classification. But one can occasionally and infrequently find an association between different odontogenic tumours and cysts, like calcifying epithelial odontogenic tumour (CEOT) and adenomatoid odontogenic tumour (AOT), CEOT and ghost cell tumour. Some of the odontogenic tumours and cysts share the site of occurrence, intraosseous location, teeth involved/quadrant involved and histopathology too. Hence these lesions are considered for differential diagnoses in most cases. But some instances report hybrid or associated tumours and cyst cases. Here we present a case of dentigerous cyst in association with AOT that showed variation in cell type, pattern and induction pattern.
Reference32 articles.
1. El-Naggar AK , Chan JKC , Grandis JR , et al , eds. World Health Organization Classification of Head and Neck Tumours. 4th ed. Lyon: IARC Press, 2017.
2. Reichart PA , Philipsen HP . Odontogenic tumours and allied lesions. London: Quintessence Publishing, 2004.
3. Adenomatoid odontogenic tumor with dentigerous cyst: report of an unusual case;Gupta;J Indian Acad Oral Med Radiol,2016
4. Multiple pathology in a single lesion: AOT associated with dentigerous cyst;Durga Sreenivas;J Maxillofac Oral Surg,2015
5. Adenomatoid odontogenic tumor arising from dentigerous cyst: report of a rare case;Geetha;Int J Oral Health Sci,2014