Central mucoepidermoid carcinoma (CMC) of the jaw bones is a rare malignant salivary gland tumor of unknown pathogenesis, comprising about 4% of all mucoepidermoid carcinomas (MECs). Most cases are histologically classified as a low-grade tumor and radiographically appear as a well-defined unilocular or multilocular radiolucent lesion. Block resection or wide local excisions are the treatment o...

Mucoepidermoid carcinoma (MEC) is a malignant epithelial neoplasm composed of varying proportions of mucous, epidermoid, intermediate, columnar, and clear cells and often demonstrates prominent cystic growth. MEC is usually subclassified as low, intermediate, or high grade on the basis of its histologic features, including the presence of cystic spaces, cellular differentiation, proportion of m...

Central mucoepidermoid carcinoma (MEC) of the jaws is rare and it comprises 2–3% of all MECs reported in the literature. It may be similar to a glandular odontogenic cyst (GOC), mainly in incisional biopsies. The precise diagnosis of these lesions is essential since they have different treatment modalities and prognosis. This paper presented a 71-year-old male patient presented with a unilocula...

BACKGROUND To determine the incidence and prevalence of salivary gland tumours in the province of Valparaíso, Chile. MATERIAL AND METHODS Retrospective review of salivary gland tumours diagnosed between the years 2000 and 2011 from four local pathology services. Information on demographics and histopathology were retrieved from the medical records. RESULTS The study sample consisted of 279 ...

Salivary gland tumours are a group of lesions whose heterogeneity of biological and pathological features is widely reflected in the molecular aspect. This is demonstrated by an increasing number of studies in the field of genetics of these tumours. The aim of this study was to collect the most significant scientific reports on the cytogenetic and molecular data concerning these tumours, which ...

A 59-year-old man was admitted to our hospital with dyspnea and cough. A large polypoid tumor was observed in the lower trachea and bronchoscopic polypectomy was performed using a snare to relieve symptoms. The tumor was diagnosed as a high grade mucoepidermoid carcinoma mainly by the histology of piecemeal specimens obtained by bronchoscopic resection. The primary lesion involved the trachea a...

Mucoepidermoid carcinoma ex pleomorphic adenoma (MCxPA) is a rare salivary gland tumor predominantly found in major salivary glands. A case of MCxPA involving the soft tissue and bone of the retromolar region of a 26-year-old man is presented. The histopathological features revealed a neoplasm with predominance of pleomorphic adenoma (PA) elements, and presence of mucoepidermoid carcinoma malig...

BACKGROUND Mucoepidermoid carcinoma of the trachea is a rare pediatric malignancy that presents unique challenges in diagnosis, operative management, and surveillance. METHODS AND RESULTS We present a 17-year-old girl with primary tracheal mucoepidermoid carcinoma presenting in acute respiratory distress due to near-total occlusion of the tracheal airway. An algorithmic approach to preoperati...

The origin of a salivary gland tumour is attributed to cells at various levels of differentiation which present histologically as diverse tissues and cellular patterns. Mitochondria-rich, eosinophilic oncocytes are cells commonly encountered in salivary gland neoplasms. We report a case of mucoepidermoid carcinoma (MEC) in the palate of a 43-year-old female that exhibited a prominent oncocytic ...

Glandular odontogenic cyst (GOC) is a rare aggressive developmental cyst of the jaw. It most commonly occurs in middle-aged people with mandible anterior region being the most affected site. This lesion can present as a unilocular or multilocular radiolucency and has high recurrence rate. The histopathologic features of the GOC are complex and often coincide with the features of dentigerous cys...