Maxillary ameloblastoma: results of the treatment in 11 patients (original) (raw)
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Maxillary ameloblastomas: a review of the literature and of a 15-year database
Journal of Cranio-Maxillofacial Surgery, 2002
were evaluated. Patients: Twenty-six patients suffering from ameloblastoma had been collected. Five of them, had a maxillary ameloblastoma, three females and two males. Methods: A clinical retrospective study was performed. In addition a review of the literature was undertaken and the findings have been compared and contrasted. Patients: The overall incidence of ameloblastoma within the mandible (21) was four times higher than in the maxilla (5). In 69 per cent of the cases (18) it occurred in men, in 31 percent (8) in women. The sex ratio differed with the maxillary ameloblastomas: 40 percent male (2) and 60 per cent female (3). Although slow growing and nearly painless, it can reach a considerable size within the mid-face involving such highly specialized structures as the orbit, skull-base and brain. Wide resections with a safety margin of healthy bone to prevent local recurrence were undertaken. Nevertheless, recurrence was frequent due to invasion of the adjacent bone. Conclusion: On the one hand, a recurrence was found after a simple curettage of a 'dental cyst'. On the other hand, extensive bone destruction, involvement of the nasal cavity, the ethmoidal and sphenoidal sinuses, infiltration of the skull-base and distant metastasis were observed. The current treatment of choice is partial maxillectomy with a 10-15 mm safety margin of healthy bone including the alveolar ridge, the hard palate, the mucosa of the maxillary sinus and the lateral nasal wall. For the removal of tumours close to or invading the retromaxillary space the temporal approach gives ample access.
Ameloblastomas of the jaws: clinico-pathological review of 11 patients
European Journal of Surgical Oncology (EJSO), 2004
Aims. The ameloblastoma is an uncommon benign odontogenic neoplasm of the maxillofacial region constituting less than 1% of tumours of the oral cavity. The purpose of this paper is to discuss and evaluate the surgical treatment and the outcome from a series of 11 patients with ameloblastomas. Methods. Between the years 1995 and 2003, 11 patients (eight female and three male) aged 17-86 years (mean 52.7) suffering from ameloblastomas of the jaws were seen in our Department. Results. Ten patients were treated surgically. In eight of those radical surgery was applied. Patients with maxillary tumours were subjected to hemimaxillectomy and local excision. Radical treatment with segmental resection of the mandible was performed in six patients with multilocular (solid) mandibular ameloblastomas, with immediate reconstruction of the defect. Follow-up ranged from 3 months to 7.5 years. Conclusion. Multilocular (solid) type of tumours should be approached with radical surgical treatment. Enucleation and rarely marsupialization can be applied selectively to unilocular ameloblastomas.
ODONTO : Dental Journal
ABSTRACTBackground: Ameloblastoma is the most common odontogenic tumor. Ameloblastoma is a borderline tumor because it is a benign but locally aggressive tumor with a high recurrence rate if the excision is not complete. The principle of treatment for ameloblastoma is excision all the tumor. This article aimed to conduct a retrospective study to analyze the characteristics of ameloblastoma in patients at Oral and Maxillofacial Surgery Hasan Sadikin Hospital Oral Surgery between the period of January 2018-December 2019Method: This is a retrospective study with 37 patients diagnosed with ameloblastoma during 2018-2019. We took data from each patient such as gender, age, radiological features, histopathological diagnosis of the location of ameloblastoma, management, defects, reconstruction. Result: A total of 22 patients were diagnosed with plexiform ameloblastoma, 12 cases of follicular ameloblastoma, 3 cases of mixed plexiform and follicular ameloblastoma. 31 patients were treated ra...
Approach and conservative surgical treatment of jaw ameloblastoma: case report
CES Odontología
Ameloblastoma is a benign neoplasm, originated from the odontogenic epithelium. It preferentially affects the mandible and due to its infiltrative growth pattern, it has a tendency to local recurrence. Treatment varies based on clinical, histological and radiographic characteristics. The aggressive treatment, such as marginal resection, has shown good results, however, it also has greater morbidity. Conservative treatments, such as decompression, enucleation and curettage, can also be used, with specific indications, and when carefully performed, it has a good prognosis. Thus, the objective of this work is to describe a case of mandibular ameloblastoma, treated in a more conservative way. Male patient, 53 years old, presented an increase in volume in the anterior region of the mandible. The clinical and radiographic characteristics suggested that it was a cystic lesion, so decompression and incisional biopsy were performed, the diagnosis of which was cystic ameloblastoma. The decomp...
Cancers
Ameloblastoma is a rare, benign, odontogenic tumor of epithelial origin, characterized by locally aggressive, expansive growth. Treatment is controversial due to the risk of relapse. The aim of this multicenter retrospective study was to evaluate the effectiveness of complete resection in cases of complex ameloblastoma, which is considered at a higher risk of recurrence. Patients who met at least one of these criteria were included: recurrence, soft-tissue involvement, complete erosion of internal/external cortical walls with involvement of the inferior margin of the mandible, and invasion of the maxillary sinus or nasal cavity. Demographic data, tumor site, type of surgery, histological features, and follow-up information were collected for each patient. The cohort included 55 patients with a mean follow-up of 108 ± 66 months. A multivariate logistic model was used to evaluate variables independently associated with relapse. There were six soft-tissue or maxillary sinus relapses, w...
Ameloblastic carcinoma of maxilla
National Journal of Maxillofacial Surgery, 2012
This study aims to present the clinical features and treatment of a case of maxillary ameloblastic carcinoma. Ameloblastic carcinoma is a rare malignant odontogenic carcinoma that has metastatic potential. Due to its rare incidence, there are few studies focusing on its radiological characteristics. When ameloblastic carcinoma demonstrates an aggressive appearance, it may be diagnosed as a malignant tumor; however, in cases showing a non-aggressive appearance, it is difficult to distinguish ameloblastic carcinoma from ameloblastoma. We report a case of ameloblastic carcinoma of the maxilla in a 59-year-old male patient, including the clinical signs, radiological images and pathological features. A partial area was surgically excised under local anesthesia and the material was sent to the Laboratory of Oral Pathology. The histological sections revealed a fragmented odontogenic tumor of epithelial origin, consisting of solid parenchyma and also revealed basal cells resembling ameloblasts, occasionally arranged in palisades. Certain parts of the architecture resembled that of an ameloblastoma; however, the cytology of other areas confirmed the diagnosis of ameloblastic carcinoma of the maxilla. The patient was scheduled for definitive surgery, including a right maxillectomy and radiotherapy. The patient was followed up every 3 months. After 2 years follow-up, there were no clinical or radiological signs of recurrence.
Ameloblastoma of the Maxilla: Report of a Case
Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology), 2004
Ameloblastomas arising in the maxilla are rare, and preoperative diagnosis is often difficult due to its rarity and atypical clinical findings. A 61-year-old man ameloblastoma involving the maxillary antrum and the nasal cavity was seen on January 25, 2002, for 24-month history of slowly increasing left nasal obstruction. He reported severe left nasal obstruction, but had no nasal discharge, postnasal drip, cheek swelling, or dental or vision problems. Radiography showed a multilobular legion in the left nasal cavity and the left maxillaly antrum with extension to the molar area, which was most remarkable with T2-weighed MM. On May 8, we explored the left maxillary sinus via a Caldwell-Luc approach. The tumor occupied the maxillary antrum and extended into the left nasal cavity via the maxillary ostium. The lateral maxillary wall was eroded, but the tumor was not invasive and was removed totally with minimal bleeding. Histologically, the excised tumor was compatible with ameloblastoma, plexiform variant.
Ameloblastic carcinoma of the maxilla
Journal of Maxillofacial Surgery, 1986
A case of an ameloblastic carcinoma in an unusual situation in the maxilla is presented. The lesion is characterized histologically by areas with features of a typical ameloblastoma and areas with anaplastic transformation. A Caldwell-Luc operation was followed by a recurrence after 3 years. Due to the advanced age and poor general health of the patient an enlarged, but not radical operation was performed. There is no evidence of metastatic tumour.