Odontogenic tumors

Lu, Yong; Xuan, Ming; Takata, Takashi; Wang, Changmei; He, Zhitao; Zhou, Zhiyu; Mock, David; Nikai, Hiromasa

doi:10.1016/s1079-2104(98)90208-6

Cited by 175 publications

(75 citation statements)

References 10 publications

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“…De Matos et al [21] in a retrospective review of 15 cases from Brazil got a lower mean age of 16.2 years, while the study by Becker et al [20] obtained a mean age of 18.4 years. Mean ages from studies by Buchner et al [16] from Califonia, and Lu et al [22] from China were 20.2 years and 22.6 years respectively, which were more in keeping with this study. Also, only 18% of AOTs were found in patients above 30 years of age, which was in agreement with previous reports that AOT is rare above 30 years [19–21].…”

Section: Discussionsupporting

confidence: 90%

A retrospective review of 61 cases of adenomatoid odontogenic tumour seen in five tertiary health facilities in Nigeria

et al. 2016

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IntroductionAdenomatoid odontogenic tumor (AOT) is a benign lesion originating from the dental lamina or its remnants. It is a relatively uncommon neoplasm representing about 3% of all odontogenic tumors. The aim of this study was to examine the clinical and radiological characteristics of AOTs in five major tertiary centres in Nigeria.MethodsArchival hospital-based data stores of five tertiary health facilities in Nigeria were accessed. Case files and biopsy records were retrieved to obtain relevant information. Data was collected according to a proforma for standardization and entered into and analysed using SPSS for Windows (version 20.0; SPSS Inc. Chicago, IL).Results61 (4.5%) cases of AOT were documented. The age range was 8-46 years with a mean age of 20.4±9.9 years. Male: Female ratio was 1:1.3. The anterior maxilla had 34 (55.8%) cases and the anterior mandible had 20 (32.8%) cases. 40 (65.6%) follicular cases, 20 (32.8%) extra-follicular cases and 1(1.6%) extra-osseous case were found. 31 cases (61.1%) were associated with impacted teeth and the upper canine was involved in 19 (57.6%) cases.ConclusionThis study showed AOT to be more common in the maxilla, more in females, most often associated with impacted canines, however, the suggestion of AOT being a “Two third tumour” was not observed in this study.

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Section: Discussionsupporting

confidence: 90%

A retrospective review of 61 cases of adenomatoid odontogenic tumour seen in five tertiary health facilities in Nigeria

et al. 2016

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“…Ameloblastomas have been predominant in most studies,32,33 while odontoma is more common among Caucasians 34. Similar to previous studies, females were most affected, and the onset was common in the third decade 35.…”

Section: Discussionsupporting

confidence: 79%

Retrospective analysis of biopsied oral and maxillofacial lesions in South-Western Saudi Arabia

Saleh

Idris

Vani

et al. 2017

SMJ

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Objectives:To report the prevalence and types of biopsied oral and maxillofacial lesions (OMLs) in South-Western (Jazan Province) region, Kingdom of Saudi Arabia (KSA).Methods:This retrospective study was based on the retrieval of clinicopathological data for a period of 6 years between January 2009 and December 2014. These data were obtained between October 2014 and June 2015 from the histopathology records of King Fahad Central Hospital, Jazan, KSA, which is the only referral center for biopsy services.Results:Out of the 32149 biopsies received, 714 (2.2%) were OMLs. The age ranged from 0 (neonatal) to 100 years, with a mean age of 46.8±23.4 and a male-to-female ratio of 1:1.3. The tongue was the most common site for OMLs and for malignant neoplasms, in particular. The most common category was malignant neoplasm (38.7%), followed by inflammatory lesions (16.5%). Oral malignancies accounted for 15.8% of all malignancies. Oral squamous cell carcinoma (OSCC) (36.1%) was the most frequent type, followed by pyogenic granuloma and mucocele (7% each). Shammah-associated OSCC and epithelial dysplasia were twice as common in females.Conclusion:The number of non-malignant OMLs was much lower than expected in comparison to oral malignancies. This difference can likely be explained by the fact that the biopsies were taken only when malignancy was suspected. The higher rate of OSCC reported from this region is attributed to shammah usage. This study emphasizes the importance of biopsy services for all OMLs and the prevention of shammah use.

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“…Radiographic differential diagnosis must be done mainly with ameloblastoma, ameloblastic fibroma, odontogenic fibroma, central hemangioma or odontogenic keratocyst (11). The pathologic diagnosis consists of the presence of fusiform mesenchymal cells interspersed in a loose myxoid matrix and mucoid with surrounding residual bone (2,6,8,12,13). …”

Section: Discussionmentioning

confidence: 99%

“…Treatment should be individualized, taking into account tumor location, size and presence of local invasion, preferring where possible, less invasive procedures initially as a marginal bone resection or curettage (4,5,12). Enucleation and isolated curettage can reach 25% recurrence rates (4).…”

Section: Discussionmentioning

confidence: 99%

Clinicopathologic analysis of 14 cases of odontogenic myxoma and review of the literature

et al. 2017

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BackgroundOdontogenic myxoma is a rare benign neoplasm that originates from odontogenic ectomesenchyme. There is no standard of care and recurrences are frequent after conservative surgical procedures.Material and MethodsA retrospective study conducted at a single cancer center, with analysis of medical records of all patients diagnosed with odontogenic myxoma from 1980 to 2010, along with a literature review.ResultsThere were 14 patients with diagnosis of odontogenic myxoma (OM). Most patients were female (78.6%) and Caucasian (100%), with ages ranging from 7 to 51 years (21.6 ± 11.6 years). The time period between the first symptom and first consultation ranged from 0 to 60 months (19.4 ± 19.97 months). The most frequent complaints were increased local volume or failure to tooth eruption. The most common tumor site was the mandible (11 cases, 78.5%). About radiological findings, most lesions were multilocular (9 cases, 64.3%) and with imprecise limits (12 cases, 85.7%). Surgery was performed in all cases and curettage was the most applied technique (10 cases, 71.4%). Three patients underwent mandibulectomy and complex reconstructions including iliac crest microvascular flap. Three patients had postoperative complications and 4 had local recurrences of the tumor. The follow up time ranged from 12 to 216 months (112 ± 70.8 months). All patients are without clinical and radiographic evidence of disease.ConclusionsOM is a locally aggressive and rare tumor. There is no gold standard surgical management and the therapeutic decision should be individualized taking into account the characteristics and extension of the tumor. Key words:Mandible, myxoma, odontogenic, odontogenic tumor.

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Odontogenic tumors

Cited by 175 publications

References 10 publications

A retrospective review of 61 cases of adenomatoid odontogenic tumour seen in five tertiary health facilities in Nigeria

A retrospective review of 61 cases of adenomatoid odontogenic tumour seen in five tertiary health facilities in Nigeria

Retrospective analysis of biopsied oral and maxillofacial lesions in South-Western Saudi Arabia

Clinicopathologic analysis of 14 cases of odontogenic myxoma and review of the literature

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