Adenomatoid Odontogenic Tumor of Maxilla

An Adenomatoid Odontogenic Tumour (AOT) is an uncommon, benign, odontogenic lesion that is characterized by slow, non-invasive growth. AOT, accounting for approximately 3% of all odontogenic tumours, is mostly found in the maxilla of young females during their second decade. Often, AOT is associated with the impacted canine tooth, typically encapsulated and with a low rate of recurrence following treatment. The case report details an atypical case of a large AOT in a 26-year-old-male presented to Moi Teaching and Referral Hospital (MTRH) with a gradual growing-swelling on the right side of his face. The growth had been developing for over four years resulting in marked facial asymmetry. The examination revealed a 10cm by 5cm, firm, non-tender mass on the right maxilla which was fixed on the underlying bone. The Computed Tomography (CT) Scan showed a well-defined, and encapsulated lesion while the incisional biopsy confirmed the AOT diagnosis. The patient underwent successful surgical excision of the tumour which was then subjected to subsequent histopathological analysis reaffirming the AOT diagnosis. This case is significant because of the AOT occurrence in a 26-year-old male which falls outside the typical AOT demographic profile. Thus, it highlights the necessity of including AOT within the differential diagnosis of maxillary swellings for an atypical patient population. The case also underscores the importance of employing a combination of clinical, radiographical, and histopathological evaluations to achieve a definitive AOT diagnosis. Keywords: Adenomatoid Odontogenic Tumour, Surgical Enucleation, Hamartomatous Lesion.