8/18/2019 2006CGCG of the Jaws

1/1

122   Journal of Cranio-Maxillofacial Surgery 34(2006) Suppl. S1   Abstracts, EACFMS XVIII Congress

lichen planus (11%) and 5 cases of verrucous hyperplasia (5%).Follow-up averaged 24 months (range 1–73 months).Results:   Fifty-two patients were disease-free (54%), 15 patientshad small recurrences removed with subsequent laser surgeries,leading to control (16%) and 29 patients had complete recur-rences of the original lesion (30%). Recurrence appeared in 13months (2–64 months). Eleven patients developed new dysplastic

lesions at distinct sites (11%) and in 8 patients occurred amalignant transformation in the same or different site of theoriginal lesions (8%).Conclusions:  Treatment of the white lesions of the oral cavityusing a CO2  laser is an ideal alternative due to its effectivenessand good post-operative regime. Post-operative pain, bleedingand scar retractions are complications that may occur with thistherapy.

O.451   Central giant cell granuloma of the jaws.A clinical study and review of the literature

G. Karakinaris, Kath. Triantafillidou, G. Venetis, K. Siochos,F. Iordanidis.   Department of Oral and Maxillofacial Surgery,

 Dentistry School, Aristotle University of Thessaloniki, GreeceIntroduction and Objectives: This clinical review article intendsto analyse the outcome of management of a group of 19 patientswith CGCG, who were treated in our clinic.Material and Methods:  A total of 19 patients were diagnosed with CGCG in the jaws and treated in our clinic. The female-to-male ratio was 10:9. The age range was 7–60 years. Thelocation of the lesions was mandible (11), maxilla (5), maxillaand maxillary sinus (2), and condyle of the mandible (1). Allthe patients treated were with curettage of the lesions, except the patient that the lesion located in the condyle, who were treated with condylectomy.Results:   The follow-up range for our patients was 1–18 years.Fifteen patients are free of the disease. For the patient withcondylectomy 3 years later the lesion relapsed with spread in the

infratemporal fossa. The patient is under medical therapy (for 1year) with calcitonin.Conclusions: CGCG is a localized osteolytic lesion of variablyaggressive nature that affects the jaws bones. The essential micro-scopic component of CGCG is the presence of multinucleated gi-ant cells distributed within a collagenous stroma having a variablecellularity. Curettage alone or combined with resection withoutcontinuity loss of the interior cortex of the mandible, is suggested as satisfactory method of treatment for mandibular lesions. For lesions in the maxilla, where the maxillary cortical plates are thinand frequently there is involvement of the maxillary sinus thetreatment composed of either partial maxillectomy or curettage.

O.452   Aneurysmal bone cysts of the jaws:

Clinicopathological features, differentialdiagnosis and treatment analysis of 5 cases

K. Siochos, G. Venetis, Kath. Triantafillidou, G. Karakinaris,F. Iordanidis.   Department of Oral and Maxillofacial Surgery, Dentistry School, Aristotle University of Thessaloniki, Greece

Introduction and Objectives:  This article evaluates the clinico- pathological outcomes of ABCs of the jaws in a 5-patient groupwho treated in our clinic, during a 14-year period.Material and Methods:  All the patients were female and the agerange was 7–35 years. The location of the ABCs was maxillaand maxillary sinus (3, one of these cases developed withinossifying fibroma) and mandible (2). All the patients treated with complete surgical curettage of the lesions. The one casethat developed within ossifying fibroma concerned a 7-year old 

girl. After 3 attempts of surgical curettage of the lesion in our clinic, the patient went to Germany where she was treated byradical surgery (maxillectomy), while the defect in the maxillawas closed with free vascularized bone graft, which unfortunatelyfailed. The patient returned in our clinic and the defect was closed over again with autogenous iliac bone graft and osseointegrated implants were placed. Today the patient is 21-year old and free

of the disease.Results:   During the follow-up period, which ranged from 1to 14 years no recurrences have occurred. It is obvious thatABCs presented with clinicopathological similarities of other  pathological bone lesions (central giant cell granuloma, fibro-osseous lesions). So the diagnosis and differential diagnosis may be a dilemma.Conclusions: We believe that thorough curettage, with a carefulfollow-up, is the treatment of choice for the ABCs of the jaws.The histopathological characteristics of the specimen should becarefully studied, as the presence of an associated aggressiveintraosseous lesion could differentiate the therapeutic approaches.

O.453   Myxofibroma of the jaws: is partial resection of 

mandible or maxilla still the therapy of choice?

 N. Brueggemann, G. Gehrke.   Department of Cranio-, Maxillo-, Facial- and Plastic Surgery, Henriettenstiftung, Hannover,Germany

Introduction and Objectives:  The odontogenic myxofibromais a rare benign, locally invasive growing tumour, that does notoccur outside of the jaws. Because of the local invasive behavior of the myxofibroma, some authors presume a latent malignant potential and prefer a primary radical treatment of those tumours.Material and Methods:  During the last 10 years 5 patients withmyxofibroma in the jaw region underwent surgical treatment atour clinic. One patient received primary treatment in an other hospital.Results:   Two patients had large tumours in the maxilla and 3

 patients suffered from large tumors of the mandible. The meanage of the patients was 46.8 years, the patients with tumours inthe mandible were younger (mean 37 years). All patients weremale. The average follow-up time was 7 years.Conclusions:  The state of art in diagnostics and surgical treat-ment is reviewed by literature and compared with the outcomeof our study. Though the most authors call the myxofibroma a benign tumour, one patient died of locally aggressive behaviour of the tumour. Due to our experience the primary treatmentfor myxofibroma of the mandible does not need to be radical.Myxofibroma of the maxilla and recurrent myxofibroma of themandible should always be treated by partial resection. In caseof the need of partial resection of the mandible, reconstruction by a microvascular fibula bone graft is a safe and well-accepted method.

O.454   Ameloblastoma arising in a 5 month child:A severe exploding lesion

A. Petti, F. Bergaminelli, R. De Santis.  UOC ODT – Chirurgiamaxillo-facciale ASL SA 1 Ospedali Riuniti delle 3 Valli P.O.Umberto 1, Nocera Inferiore, Italy

The ameloblastoma is a usually non-malignant lesion of the jawthat rarely affects children. Ralely it is reported in very young patients. The most common age is 15–30 years. We present a5 month child referred to our Hospital for an important swellingin the upper jaw that was growing daily more and more. Themother stated that his dentist 3 days before had extracted a‘denticulus’ from a swelling reddish mass on the left side. An-