Imaging of maxillomandibular ameloblastoma

Drevelengas, Antonios; Eleftheriadis, J; Kalaitzoglou, Ioannis; Palladas, Panagiotis; Lazaridis, Nikolaos

doi:10.1007/bf00606448

Cited by 6 publications

(12 citation statements)

References 11 publications

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“…Occasionally it can be a well‐demarcated unilocular lesion, whereas often it presents as multiloculated expansile lucencies with a so‐called ‘soap bubble’ appearance 5,6 . Computed tomography (CT) may be useful in the assessment of the extent of the tumour, cortical destruction and extension into the neighbouring soft tissues 7,8 …”

Section: Introductionmentioning

confidence: 99%

Mandibular ameloblastoma: clinical experience and literature review

Sham¹,

Leong²,

Maher³

et al. 2009

ANZ Journal of Surgery

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Section: Introductionmentioning

confidence: 99%

Mandibular ameloblastoma: clinical experience and literature review

Sham¹,

Leong²,

Maher³

et al. 2009

ANZ Journal of Surgery

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“…Previous investigation has also shown that in addition to the characteristics described on x-ray, CT is able to evaluate the integrity of the cortex by visualizing expansion and thinning, define the extension of tumor into adjacent structures and the presence of soft tissue mass formation [22]. These images are created without superimposing anatomical structures and exhibit no magnification or distortion [23].…”

Section: Discussionmentioning

confidence: 99%

Achieving Adequate Margins in Ameloblastoma Resection: The Role for Intra-Operative Specimen Imaging. Clinical Report and Systematic Review

et al. 2012

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BackgroundAmeloblastoma is a locally aggressive odontogenic neoplasm. With local recurrence rates reaching 90%, only completeness of excision can facilitate cure. Surgical clearance has widely been based on pre-operative imaging to guide operative excision margins, however use of intra-operative specimen x-ray or frozen-section has been sought to improve clearance rates, and advanced imaging technologies in this role have been proposed. This manuscript aims to quantify the evidence for evaluating intra-operative resection margins and present the current standard in this role.MethodThe current study comprises the first reported comparison of imaging modalities for assessing ameloblastoma margins. A case is presented in which margins are assessed with each of clinical assessment based on preoperative imaging, intra-operative specimen x-ray, intra-operative specimen computed tomography (CT) and definitive histology. Each modality is compared quantitatively. These results are compared to the literature through means of systematic review of current evidence.ResultsA comparative study highlights the role for CT imaging over plain radiography. With no other comparative studies and a paucity of high level evidence establishing a role for intra-operative margin assessment in ameloblastoma in the literature, only level 4 evidence supporting the use of frozen section and specimen x-ray, and only one level 4 study assesses intra-operative CT.ConclusionThe current study suggests that intra-operative specimen CT offers an improvement over existing techniques in this role. While establishing a gold-standard will require higher level comparative studies, the use of intra-operative CT can facilitate accurate single-stage resection.

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“…Involvement of the maxilla by ameloblastic carcinoma seems to be less frequent than that of the mandible. [ 7 ]…”

Section: Discussionmentioning

confidence: 99%

“…Slootwegand Muller (1984) reviewed the literature and reclassified 69 reported cases into 46 ameloblastic carcinomas and 23 malignant ameloblastomas, indicating that the incidence of ameloblastic carcinoma may be twice as that of malignant ameloblastoma. [ 7 ]…”

Section: Discussionmentioning

confidence: 99%

Ameloblastic carcinoma: Secondary dedifferentiated carcinoma of the mandible: Report of a rare entity with a brief review

Pundir

Saxena

Rathod

et al. 2011

J Oral Maxillofac Pathol

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Epithelial odontogenic tumors arise from odontogenic epithelial structures. Malignant epithelial odontogenic tumors are extremely rare. Ameloblastic carcinomas may present denovo, ex ameloblastoma or ex odontogenic cyst. Most ameloblastic carcinomas are presumed to present denovo. To date less than 45 cases of ameloblastoma with metastasis have been reported. It occurs primarily in the mandible in a wide range of age groups; no sex or race predilection has been noted. It may present as a cystic lesion with benign clinical features or as a large tissue mass with ulceration, significant bone resorption, and tooth mobility. The lesion is usually found unexpectedly after an incisional biopsy or the removal of a cyst. Histologic features of ameloblastic carcinoma shows tumor cells that resemble the cells seen in ameloblastoma, but they show cytologic atypia. Moreover, they lack the characteristic arrangement seen in ameloblastoma. The clinical course of ameloblastic carcinoma is typically aggressive, with extensive local destruction. Here we describe a rare case of ameloblastic carcinoma (secondary dedifferentiated carcinoma) of mandible in a 40-year-old female patient. Ameloblastic carcinoma: Secondary dedifferentiated carcinoma of the mandible.

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Imaging of maxillomandibular ameloblastoma

Cited by 6 publications

References 11 publications

Mandibular ameloblastoma: clinical experience and literature review

Mandibular ameloblastoma: clinical experience and literature review

Achieving Adequate Margins in Ameloblastoma Resection: The Role for Intra-Operative Specimen Imaging. Clinical Report and Systematic Review

Ameloblastic carcinoma: Secondary dedifferentiated carcinoma of the mandible: Report of a rare entity with a brief review

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