مقاله انگلیسی رایگان در مورد آملوبلاستومای عود کننده – هینداوی ۲۰۱۸

Ameloblastoma is the common locally aggressive benign epithelial odontogenic tumour of the oral cavity. It was 0rst recognized by Cusack in 1827 and named in 1930 by Ivy and Churchill [1]. According to WHO classi0cation in 2005, there are 5 subtypes of benign ameloblastoma documented, and they are (1) solid/multicystic type, (2) desmoplastic type, (3) unicystic type, and (4) extraosseous/peripheral type [2]. Histopathologically, the 6 subtypes are follicular, plexiform, acanthomatous, basal, unicystic, and desmoplastic ameloblastoma. It can be managed either by the conservative method or radical approach depending on the type, location, and size and age of the patient. A systematic review by Almaida et al. described that the 50% of recurrence is seen in follicular subtype and the recurrence rate is signi0cantly low if a radical approach is used [3]. (is paper describes two cases of recurrence of ameloblastoma in patients who underwent segmental resection of the jaw. (ese case reports can be added to the list of reported cases of recurrent ameloblastomas.

۲٫ Case 1

A 46-year-old male patient referred by a private practitioner complained of swelling in the previously operated area of the right lower jaw since one month. He had a history of surgery in the same region. While going through the records of the patient, he had undergone segmental resection and reconstruction of the defect with rib graft 15 years ago. Histopathology reports of the previous pathology were not available in the records. Panoramic radiograph and CT scan revealed multilocular radiolucent lesion in the previously operated site (Figure 1). (e clinical diagnosis at present was recurrent multicystic ameloblastoma involving the bone graft. (e excision of the lesion with 1 cm uninvolved soft tissue margin was performed through the previous scar (Figures 2 and 3). (e histopathology report of the specimen suggested follicular ameloblastoma with acanthomatous changes with tumourfree margins. A 1-year-follow-up showed no recurrence. He is planned for alloplastic reconstruction of the right hemimandible, considering the benign nature of the lesion.