Central mucoepidermoid carcinoma: Report of 2 cases

Central mucoepidermoid carcinoma: An up-to-date analysis of 147 cases and review of prognostic factors

OBJECTIVE

To integrate the available data published on central mucoepidermoid carcinoma (CMC) into a comprehensive analysis of its clinical aspects, histology, treatment, and prognostic factors.

METHODS

An electronic search was undertaken in July 2017. Eligibility criteria for publications included having clinical, histological, treatment, and time of follow-up data to confirm the diagnosis.

RESULTS

In addition, gender, histological grade, conservative treatment, and lymph node metastasis were significant independent prognostic factors.

CONCLUSION

Male patients with histological grade III CMC of the jaw bone, who used conservative treatment as the main treatment, and presented with lymph node metastasis, were more likely to have a worse prognosis.

Central mucoepidermoid carcinoma of the anterior region of the mandible: report of an unusual case and review of the literature

INTRODUCTION

Central mucoepidermoid carcinoma is a rare lesion, whose exact pathogenesis is still not fully understood. Generally, it is more frequently encountered in the mandible than in the maxilla and in the posterior than in the anterior aspect of the jaws. Cases of central mucoepidermoid carcinomas are rarely mentioned in the literature, and therefore, additional information concerning this type of lesion is needed.

CASE REPORT

In the present paper, we report an extremely unusual case of a central mucoepidermoid carcinoma in the anterior region of the mandible of a 37-year-old female patient. The diagnosis and the surgical management of the tumor along with the reconstructive techniques utilized to restore the mandible and a 6-year follow-up are discussed.

DISCUSSION

Central mucoepidermoid carcinoma is an unusual tumor of the jaws, especially in the anterior region. It is only locally aggressive and has most frequently a good prognosis if treated with wide surgical excision.

Mandibular central mucoepidermoid carcinoma: a case report and review of the literature

We report the case of a patient whose main complaint was swelling on the right side of the mandible when he presented to the Ear, Nose and Throat (ENT) Service. Imaging studies revealed a large homogeneous, multilocular, expansive lesion in the body of the right mandibular ramus. The lesion was poorly enhanced following intravenous contrast injection. The patient was treated with hemimandibular surgical resection, fibula free flap reconstruction and adjuvant radiotherapy. Currently, the patient is disease free and free of posttreatment complications.

Intraosseous mucoepidermoid carcinoma: a review of the diagnostic imaging features of four jaw cases

The purpose of this case series is to present the common features of intraosseous mucoepidermoid carcinoma (IMC) of the jaws in plain film and CT imaging. Two oral and maxillofacial radiologists reviewed and characterized the common features of four biopsy-proven cases of IMC in the jaws in plain film and CT imaging obtained from the files of the Department of Oral Radiology, Faculty of Dentistry, University of Toronto, Toronto, Canada. The common features are a well-defined sclerotic periphery, the presence of internal amorphous sclerotic bone and numerous small loculations, lack of septae bordering many of the loculations, and expansion and perforation of the outer cortical plate with extension into surrounding soft tissue. Other characteristics include tooth displacement and root resorption. The four cases of IMC reviewed have common imaging characteristics. All cases share some diagnostic imaging features with other multilocular-appearing entities of the jaws. However, the presence of amorphous sclerotic bone and malignant characteristics can be useful in the differential diagnosis.

Intraosseous mucoepidermoid carcinoma of jaws: report of 24 cases

OBJECTIVE

Intraosseous mucoepidermoid carcinoma of jaws is rare, and management of the disease remains poorly understood. The aim of this study was to assist the diagnosis and treatment of the tumor.

STUDY DESIGN

The records of clinical data and follow-up information were collected from 1996 to 2010 and retrospectively analyzed for clinical features, surgical intervention, and prognosis.

RESULTS

Of 24 cases, 15 were male, and the average age was 47.33 years. The clinical presentation of this tumor varied. For primary lesions and neck nodes, radical surgery was performed; radiotherapy or chemotherapy was administered after operation. The survival rate of all patients was 66.7%. The average survival period was 53.3 months after surgery.

CONCLUSIONS

Diagnosis should be based on clinical and pathologic manifestations, surgery is the first choice for patient treatment, and radiotherapy may improve prognosis and therefore should be recommended in postoperative period.

Central mucoepidermoid carcinoma of maxilla with radiographic appearance of mixed radiopaque-radiolucent lesion: a case report

Mucoepidermoid carcinoma is the most common primary malignancy of the salivary glands. Central mucoepidermoid carcinomas are extremely rare in the jaws. Here we report a case of a 19-year-old central mucoepidermoid carcinoma in a young female patient which was asymptomatic throughout her history and which radiographically simulated a fibro-osseous lesion; both features misled the clinical diagnosis. A radiographic picture of mixed radiopaque-radiolucent appearance in central mucoepidermoid carcinoma is extremely rare. The long duration is also uncommon for a malignant lesion. This case report adds a new dimension to the clinical and radiographic picture a central mucoepidermoid carcinoma can reveal.

Mandibular central mucoepidermoid carcinoma with distant metastasis

Mucoepidermoid carcinoma is the most common malignant salivary gland tumour. Central mucoepidermoid carcinomas (CMC) are an exceedingly rare subgroup, representing 2-4% of all cases. The authors report on a case of CMC in a patient who presented with trigeminal neuropathy, trismus and distant metastasis. The possible pathogenesis of CMC and criteria for diagnosis are discussed.