Osteochondromas of the mandibular condyle: variance in radiographic appearance on panoramic radiographs

Zhang, J; Wang, H; Li, X; Li, W; Wu, Hanjiang; Miao, Jianyun; Yuan, Xiang-zhi

doi:10.1259/dmfr/19168643

Cited by 29 publications

(29 citation statements)

References 18 publications

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“…It is still uncertain whether this lesion is developmental, neoplastic, or reparative. Trauma and inflammation have been specifically indicated either as initiating or as predisposing factors for mandibular OCs [7][8][9][10].…”

Section: A B Discussionmentioning

confidence: 99%

“…Mouth opening reduction is the most consistent clinical feature of OC [6]. It's rare in the dentomaxillofacial region [7][8][9][10], however, when it occurs, the condyle and coronoid process are frequently the affected sites [7,[9][10][11][12]. Other locations have been reported such as the skull base, posterior maxilla, maxillary sinus, ramus, body and symphysis [7,10].…”

Section: Introductionmentioning

confidence: 99%

“…It presents with modifications at the occlusion [7,8,12], development of facial asymmetry, and a posterior apertognathia on the affected side [13], pain with varying intensity [7,8]. Limitation of mouth opening is not common with condylar tumors, but is often noticed with tumors located at the coronoid process [7,13].…”

Section: Introductionmentioning

confidence: 99%

“…Approximately 75% of the patients with osteochondroma develop solitary lesions while 25% have multiple lesions. The definitive diagnosis of OC is based on clinical, radiographic findings and histological criteria [8,18]. Differential diagnosis includes osteoma, chondroma condylar hyperplasia, chondrogenic intracondylar lesion, giant cell tumor, myxoma, fibro osteoma, fibrous dysplasia, fibrosarcoma, osteo cartilaginous exostosis [7,8,13,18], fibrous dysplasia, and metastatic disease [13].…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, a conservative approach can result in an inadequate removal of the tumor and lesion recurrence or enables recurrence or malignant change of the lesion [4]. Recurrence of OC and malignant transformation are extremely rare [8,11], approximately 2% [7].…”

Section: Introductionmentioning

confidence: 99%

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Osteochondroma of the sigmoide notch: a case report of an unusual location

Durão¹,

Chilvarquer

Provenzano

et al. 2016

Rev. Odonto Ciênc. (Online)

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Objective: This article presents an interesting case of osteochondroma of the the sigmoid notch. Case Report: A 15-year-old female with severe facial asymmetry, malocclusion, open bite and extreme limitation of mouth opening. Panoramic radiography showed an exophytic radiopaque mass arising from the sigmoid notch on the right side. CT images revealed bony proliferation with benign signs causing damage to the articular eminence, condilar morphology and periarticular soft tissue calcifications. Magnetic Resonance confirmed the findings of the CT and revealed modifications on disc morphology. A surgical resection was performed. Conclusion:The OC located at the sigmoid notch presented is probably the rarest site seen in the existing literature.Key words: Osteochondroma; Sigmoid notch; Facial asymmetry; Restricted mouth opening Osteocondroma do sulco sigmoide: relato de caso em uma localização rara RESUMO Objetivo: O presente artigo apresenta um caso interessante de osteocondroma (OC) no sulco sigmoide. Relato do caso: Paciente do sexo feminino, com 15 anos de idade, apresentada assimetria facial severa, mal oclusão, mordida aberta e restrição severa da abertura bucal. A radiografia panorâmica evidenciou a presença de uma massa radiopaca exofítica, partindo do sulco sigmoide do lado direito. Imagens de tomografia computadorizada (TC) evidenciaram a presença de proliferação óssea, com características benígnas, causando alterações na eminência articular, morfologia condilar e calcificação dos tecidos moles peri-articulares. A ressonância magnética confirmou os achados da TC com relação à alteração da morfologia do disco articular. Como tratamento, foi realizada a ressecção cirúrgica. Conclusão: O OC localizado no sulco sigmoide, apresentado no presente relato de caso, é provavelmente a localização mais rara citada na literatura.

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Section: A B Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Osteochondroma of the sigmoide notch: a case report of an unusual location

Durão¹,

Chilvarquer

Provenzano

et al. 2016

Rev. Odonto Ciênc. (Online)

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Comparison of computed tomography and magnetic resonance imaging for the detection of mandibular condylar osteochondroma*

Shen

Zhu

et al. 2018

Oncology and Translational Medicine

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ObjectiveThe purpose of this study was to compare computed tomography (CT) and magnetic resonance imaging (MRI) for the detection of mandibular condylar osteochondroma.MethodsPreoperative CT and MRI of 33 patients with unilateral condylar osteochondroma were reviewed. The morphology, location, continuity with the parent bone, cartilage cap, perichondrium of tumors, and changes in soft and hard tissues adjacent to the lesions were investigated by two reviewers. Data were analyzed using McNemar test. A P value < 0.05 was considered significant.ResultsAmong the 33 condylar osteochondromas, 11 were of the diffuse type, 10 were of the sessile type, and 12 were of the pedunculated type. Continuity with the cortex and marrow of the host condyle was observed on both CT and MRI. Both modalities had identical detection rates of surface reconstruction of the temporal bone joint, condylar dislocation, and pseudarthrosis formation. However, MRI showed significantly higher detection rates of the cartilage cap and perichondrium than CT (P < 0.05). Furthermore, MRI showed ipsilateral and contralateral temporo-mandibular joint (TMJ) disc displacement in 4 cases and 6 cases, respectively, and ipsilateral and contralateral TMJ effusion in 20 cases and 14 cases, respectively.ConclusionCT can intuitively display the morphology and spatial location of condylar osteochondromas through three-dimensional reconstruction. MRI may be superior to CT in the detection of cartilage cap, perichondrium of the condylar osteochondroma, and changes in the TMJ and adjacent soft tissues.

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Clinical and radiological analysis of osteochondromas of the mandible using cone-beam computed tomography

et al. 2016

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Osteochondromas of the mandibular condyle: variance in radiographic appearance on panoramic radiographs

Abstract: The mandibular condylar osteochondromas may show different growth positions encircling the condyle and exhibit varying shapes on panoramic radiograph. These features will help us to increase cognition of the lesion and make an exact diagnosis.

Cited by 29 publications

References 18 publications

Osteochondroma of the sigmoide notch: a case report of an unusual location

Osteochondroma of the sigmoide notch: a case report of an unusual location

Comparison of computed tomography and magnetic resonance imaging for the detection of mandibular condylar osteochondroma*

Clinical and radiological analysis of osteochondromas of the mandible using cone-beam computed tomography

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