An unconventional ameloblastic fibro-odontoma with compound odontoma like features

Introduction: Odontogenictumours cover a wide and diverse spectrum of tumours. Some odontogenictumours have a varied etiopathogenesis and share a presentation very similar to hybrid odontogenictumours. Ameloblastic fibroodontoma is one such Radhika Manoj Bavle1, Makarla Soumya2, K. Paremala2, Hosthor Sreelatha S.3, M. Sudhakara2, Venugopal Reshma3 Affiliations: 1M.D.S, Professor & Head, Department of Oral & Maxillofacial Pathology, Krishnadevaraya College of Dental Sciences, Bangalore, Karnataka, India; 2M.D.S, Reader, Department of Oral & Maxillofacial Pathology, Krishnadevaraya College of Dental Sciences, Bangalore, Karnataka, India; 3M.D.S, Sr Lecturer, Department of Oral & Maxillofacial Pathology, Krishnadevaraya College of Dental Sciences, Bangalore, Karnataka, India. Corresponding Author: Dr. Soumya Makarla, M.D.S, Reader, Department of Oral Pathology, Krishnadevaraya College of Dental Sciences, Sir MVIT Campus, Hunasemaranahalli, Bangalore, Karnataka, India, 562157; Email: [email protected] Received: 12 May 2017 Accepted: 12 July 2017 Published: 01 November 2017 tumor. Though the WHO 2017 Classification of Head and Neck tumors continues to support this hypothesis, it is clear, with more than 215 case reports, that it is a tumour that does not feature in the continuum of the spectrum of ameloblastic fibroma ending with ameloblastic fibroodontoma and odontoma. It therefore deems recognition as an independent entity. The ameloblastic fibroodontoma irrespective of central or peripheral location will show an ameloblastic fibroma like presentation along with a compound or complex composite odontome histologically. It has also been conjectured whether it is a true neoplasm or hamartoma. Case Report: We report a case of an ameloblastic fibroodontoma in an eight year old male patient with a diffuse swelling extraorally in the infraorbitalzygomatic area. Intraoral examination revealed a large 4.5x3 cm soft tissue mass on the right maxillary alveolar area involving primary molars and permanent 1st and 2nd molar region. Radiologic examination revealed a lesion with 32 denticles and destruction of alveolar bone, which showed a histopathologic picture of ameloblastic fibroodontoma with a composite compound odontoma like pattern. Conclusion: Our case describes an ameloblastic fibroodontoma, which presented as a painful mass of the maxilla with compound composite odontome like features supporting the tumour concept and as an independent entity not belonging to the continuum spectrum.