Introduction: Ameloblastoma is the second most frequent epithelial odontogenic tumours of the jaws, characterized by a high recurrence rate (11-18% of odontogenic tu- mours, incidence of 0,5-1 case/1,000,000 a year). This retrospective study reviews the features of the cases of ameloblastoma operated at San Paolo University Hospital in Milan, units of Maxillo Facial Surgery and Oral Surgery from 1995 to 2011. All patients were treated using the same protocol for diagnosis and surgical treatment. Patients and methods: The studied parameters were sex, age at diagnosis, site distribution, histological type, treat- ment, and follow-up records. Results: Fifty-nine patients were included (with 13 ameloblastoma recurrence of ameloblastoma treated pre- viously in other units). The mean age was 43 years. Ana- tomical site distribution was mandibular location in 79% of cases, maxillary bone location in 15,2% and maxillary sinus location in 1,7%. The most common histological type was follicular ameloblastoma. Patients were treated by enucleation and curettage in 25,4% of cases and by resection in 71,2% of cases with reconstruction in 66,6% of them (bone grafts or free flaps). The follow-up was recorded for all of the patients (with a range of 6 month-16 years) with a 16,9% recurrence rate. After enucleation the recurrence rate was 20% and after resection the recurrence rate was 16,7%. Discussion: The treatment depends on imaging featuring (unicystic or multycystic lesion), anatomical site and dimension of the lesion. Conservative treatment is the first choice in primary cases with unicystic lesion of small dimension. In more complicated cases radical surgery (with immediate reconstruction if possible) is mandatory. Maxillary bone locations, due to the risk of basicranium recurrences, require more aggressive treatments.

O-3405 SURGICAL MANAGEMENT OF AMELOBLASTOMA: OUR EXPERIENCE AND PROTOCOL / Autelitano, L; Battista, V; Chiapasco, M; Annedda, T; Rabbiosi, D; Colletti, G; Biglioli, F. - (2012), pp. 154-154. (Intervento presentato al convegno xxi Congress of the European Association for Cranio–Maxillo–Facial Surgery 11 − 15 September 2012 Dubrovnik, Croatia tenutosi a Dubrovnik, Croatia nel 11-15 September 2012).

O-3405 SURGICAL MANAGEMENT OF AMELOBLASTOMA: OUR EXPERIENCE AND PROTOCOL

Colletti G;
2012

Abstract

Introduction: Ameloblastoma is the second most frequent epithelial odontogenic tumours of the jaws, characterized by a high recurrence rate (11-18% of odontogenic tu- mours, incidence of 0,5-1 case/1,000,000 a year). This retrospective study reviews the features of the cases of ameloblastoma operated at San Paolo University Hospital in Milan, units of Maxillo Facial Surgery and Oral Surgery from 1995 to 2011. All patients were treated using the same protocol for diagnosis and surgical treatment. Patients and methods: The studied parameters were sex, age at diagnosis, site distribution, histological type, treat- ment, and follow-up records. Results: Fifty-nine patients were included (with 13 ameloblastoma recurrence of ameloblastoma treated pre- viously in other units). The mean age was 43 years. Ana- tomical site distribution was mandibular location in 79% of cases, maxillary bone location in 15,2% and maxillary sinus location in 1,7%. The most common histological type was follicular ameloblastoma. Patients were treated by enucleation and curettage in 25,4% of cases and by resection in 71,2% of cases with reconstruction in 66,6% of them (bone grafts or free flaps). The follow-up was recorded for all of the patients (with a range of 6 month-16 years) with a 16,9% recurrence rate. After enucleation the recurrence rate was 20% and after resection the recurrence rate was 16,7%. Discussion: The treatment depends on imaging featuring (unicystic or multycystic lesion), anatomical site and dimension of the lesion. Conservative treatment is the first choice in primary cases with unicystic lesion of small dimension. In more complicated cases radical surgery (with immediate reconstruction if possible) is mandatory. Maxillary bone locations, due to the risk of basicranium recurrences, require more aggressive treatments.
2012
xxi Congress of the European Association for Cranio–Maxillo–Facial Surgery 11 − 15 September 2012 Dubrovnik, Croatia
Dubrovnik, Croatia
11-15 September 2012
Autelitano, L; Battista, V; Chiapasco, M; Annedda, T; Rabbiosi, D; Colletti, G; Biglioli, F
O-3405 SURGICAL MANAGEMENT OF AMELOBLASTOMA: OUR EXPERIENCE AND PROTOCOL / Autelitano, L; Battista, V; Chiapasco, M; Annedda, T; Rabbiosi, D; Colletti, G; Biglioli, F. - (2012), pp. 154-154. (Intervento presentato al convegno xxi Congress of the European Association for Cranio–Maxillo–Facial Surgery 11 − 15 September 2012 Dubrovnik, Croatia tenutosi a Dubrovnik, Croatia nel 11-15 September 2012).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1251938
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