The mucoepidermoid carcinoma is a rare tumor in the lung. A case of bronchial mucoepidermoid carcinoma diagnosed by fine needle aspiration cytology is presented. The smear showed many intermediate cells with occasional mucus-secreting cells. Malignant squamous cells were not present. The cellular arrangement of intermediate cells was overlapping and grouped in ball-like fashion. These cytologic features are unique for diagnosis of this tumor.
Biopsy, Fine-Needle* ; Carcinoma, Mucoepidermoid* ; Diagnosis ; Lung* ; Mucoepidermoid Tumor

The mucoepidermoid carcinoma is a rare tumor in the lung. A case of bronchial mucoepidermoid carcinoma diagnosed by fine needle aspiration cytology is presented. The smear showed many intermediate cells with occasional mucus-secreting cells. Malignant squamous cells were not present. The cellular arrangement of intermediate cells was overlapping and grouped in ball-like fashion. These cytologic features are unique for diagnosis of this tumor.
Biopsy, Fine-Needle ; Carcinoma, Mucoepidermoid ; Child* ; Diagnosis ; Glomerulonephritis* ; Humans ; Lung ; Mucoepidermoid Tumor

Primary bronchial neoplasms in children, especially malignant lesions, are extremely rare. We report a case of a 10-year old boy with intermediate-grade mucoepidermoid carcinoma of the right intermediate bronchus, presenting as collapse and bronchiectasis after pneumonia. He was diagnosed by bronchoscopic biopsy. The lobectomy was performed. The patient is in good condition 1 year after operation. All reported cases of bronchial mucoepidermoid tumors in children had histologically low or intermediate grade(well differentiated) variety with a benign clinical course. The optimal surgical therapy for bronchial mucoepidermoid tumors is identical. There must be total removal of either mass with the sacrifice of as little normal lung as possible.
Biopsy ; Bronchi* ; Bronchiectasis ; Carcinoma, Mucoepidermoid* ; Child ; Humans ; Lung ; Male ; Mucoepidermoid Tumor ; Pneumonia

Mucoepidermoid carcinoma generally arises from salivary glands and represents 5~10% of all salivary tumors. Arising within the jaws as primary central bony lesions, central mucoepidermoid carcinomas are extremely rare, accounting for only 2~3% of all mucoepidermoid tumors. Central mucoepidermoid carcinoma of the mandible was first reported in 1939 and since then approximately 100 cases have been documented in the literature. Several hypotheses have been proposed to explain the pathogenesis of intraosseous salivary tumors. The most likely source of most intraosseous tumors is odontogenic epithelium. Waldron and Mustoe suggested that central mucoepidermoid carcinoma be included in primary intraosseous carcinoma of the jaw. We report here on a case of central mucoepidermoid carcinoma affecting the mandible and discuss the clinical, radiographic, and histological findings.]]>
Accounting ; Carcinoma, Mucoepidermoid ; Epithelium ; Jaw ; Mandible ; Mucoepidermoid Tumor ; Salivary Gland Neoplasms ; Salivary Glands

Mucoepidermoid carcinoma is a malignant epithelial tumour of glandular tissue, usually of the major salivary glands. However it can present in the minor salivary glands, especially in the soft palate. We report the case of a 72-year-old Malay female after presentation with sore throat, fever and odynophagia, was diagnosed with mucoepidermoid carcinoma of the soft palate.
Mucoepidermoid Tumor ; Salivary Gland Neoplasms ; Salivary Glands, Minor

Bronchial mucoepidermoid tumors are rare, especially in children. They are commonly misdiagnosed as infections or asthma and treated with bronchodilators without resolution. Based on the available clinical outcome and survival data, it is believed that tracheobronchial mucoepidermoid carcinoma may be successfully managed by surgical intervention alone in children and adolescents. We report a case of a 12-year-old boy with low-grade mucoepidermoid carcinoma in the right intermediate bronchus that caused chronic cough. He underwent sleeve resection of the right bronchus and remained symptom-free without recurrence during the follow-up period of 16 months.
Adolescent ; Asthma ; Bronchi ; Bronchodilator Agents ; Carcinoma, Mucoepidermoid* ; Child* ; Cough ; Follow-Up Studies ; Humans ; Male* ; Mucoepidermoid Tumor ; Recurrence

Mucoepidermoid tumor of the lacrimal sac is exteremely rare. To our knowledge, there have been 4 cases reported in the literature and no case was reported in Korea. We have experienced a 77-year-old male patient complaining of epiphora and medial canthal area mass of 5-month duration in the right eye. On biopsy findings, many cystic structures containing mucin were seen, of which wall consisted of neoplastic mucin-secreting cell components and small nests of epidermoid cells. The diagnosis of mucoepidermoid tumor was made.
Aged ; Biopsy ; Cellular Structures ; Diagnosis ; Humans ; Korea ; Lacrimal Apparatus Diseases ; Male ; Mucins ; Mucoepidermoid Tumor*

Glandular odontogenic cyst(GOC) is a rare cyst of odontogenic origin, first described in 1988 by Gardner et al. Three glandular odontogenic cysts are presented which were experienced in the Dept. of Oral and Maxillofacial surgery, Yonsei University. The clinical characteristics, radiologic and histopathologic features, and method of treatment are discussed. One occured in the anterior maxilla, others in the mandible body area. One in the anterior maxilla showed swelling and tenderness, others not. All the lesion presented radiographically unilocular radiolucent lesion. Histopathologically, those were lined by nonkeratinizing stratified squamous epithelium of varying thickness showing plaque-like or spherical thickening. Partially, eosinophilic cuboidal cells lined the intraepithelial microcysts. Also, ciliated cuboidal cells and mucinous cells were observed. The cysts were treated by enucleation.
Eosinophils ; Epithelium ; Mandible ; Maxilla ; Mucins ; Mucoepidermoid Tumor ; Odontogenic Cysts* ; Surgery, Oral

Carcinosarcomas, also known as true malignant mixed tumors, are rare tumors of the salivary gland and are composed of both malignant epithelial and malignant mesenchymal elements. They may occur in pre-existing pleomorphic adenomas or arise de novo. Here we report the first case of carcinosarcoma of the parotid gland composed of mucoepidermoid carcinoma and osteosarcoma. The tumor had originated from the parotid gland and extended into the parapharyngeal space. To the best of our knowledge, there have been no reports on mucoepidermoid carcinoma mixed with osteosarcoma ex pleomorphic adenoma in the parotid gland.
Adenoma, Pleomorphic ; Carcinoma, Mucoepidermoid ; Carcinosarcoma ; Mixed Tumor, Malignant ; Osteosarcoma ; Parotid Gland ; Salivary Glands

tumor, having been reported in major and minor (intraoral) salivary gland sites as well as in the maxilla and the mandible. In children, as in adults, it most often occurs in the parotid gland, but a significant percentage is found in the palate. Presently, there is no unanimity of opinion about whether to consider all mucoepidermoid tumors malignant or what the most appropriate treatment regimen is. The importance of submitting, for microscopic diagnosis, all tissue removed during surgical procedure is illustrated in this case report and a review of the literature is presented.]]>
Adult ; Child ; Diagnosis ; Humans ; Mandible ; Maxilla ; Mucoepidermoid Tumor ; Palate ; Parotid Gland ; Salivary Glands