Study of Salivary Gland Neoplasms.

Tumors of the salivary glands are uncommon and they present a great variety of histological types with many structural variation. They have a low incidence and their anatomical relationship especially that of the parotid gland to the facial nerve make their management challenging. The present study was carried out to find out the prevalence of salivary gland neoplasms, to see associated conditions like sialadenitis, sialolithiasis coexisting with salivary gland neoplasms and to do cytohistopathological correlation. Total 96 cases were collected of which 66.7% were benign and 33.3% were malignant. In 81 (84.3%) cases tumors occurred in major salivary gland while 15 (15.6%) cases in minor salivary gland. Among major salivary gland, parotid was the commonest site and in minor salivary glands, palate was the commonest site followed by lips. Pleomorphic adenoma was the commonest benign tumor and adenoid cystic carcinoma was the commonest malignant tumor followed by mucoepidermoid tumor. There was one case of synovial sarcoma. Associated pathology like sialadenitis and sialolithiasis were present in 16 benign and 5 malignant tumors. Cytohistocorrelation was seen in 63 out of 64 (98.4%) benign and 16 out of 18 (88.8%) malignant tumors.

Mucoepidermoid carcinoma of the soft palate salivary gland

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.

Carcinoma mucoepidermoide de glândulas salivares menores / Mucoepidermoid carcinoma of minor salivary glands

Introdução: Os carcinomas mucoepidermoides (CME) representam cerca de 5% de todos os tumores das glândulas salivares. Trata-se de uma lesão agressiva e deve ser considerada como hipótese de diagnóstico em lesões proliferativas da mucosa oral. O diagnóstico precoce e o correto manejo dessa neoplasia são fatores determinantes do prognóstico. Ressecção local ampla e eventualmente a radioterapia pós-operatória são o tratamento de escolha. Objetivo: Relatar o caso de uma paciente com carcinoma mucoepidermoide de cavidade oral, exteriorando-se pela boca, sendo submetida a exérese cirúrgica e radioterapia, evoluindo para óbito no quarto mês do início do tratamento. Relato do Caso: CT, 47anos, branca, foi encaminhada ao serviço de ORL do HSJA após episódio de sangramento importante em cavidade oral. Relatou o surgimento de uma massa com crescimento rápido e expansivo em topografia de fossa canina há +/- 06 meses, associado a emagrecimento de 10 kg. Paciente desidratada, hipocorada, apresentando tumoração pediculada de +/- 06 cm, consistência firme, indolor à palpação, sangrante. Etilista e tabagista crônica. Linfonodos cervicais não palpáveis. Diante do caso optou por fazer a ressecção cirúrgica do tumor e realizar o exame histopatológico que confirmou carcinoma mucoepidermoide de glândulas salivares menores. A paciente foi encaminhada ao serviço de radioterapia; porém, abandonou o tratamento e evoluiu com óbito 4 meses após. Comentários Finais: Neste caso, o crescimento rápido e agressivo da lesão, o tamanho do tumor e o abandono do tratamento proposto foi determinante no prognóstico da paciente.

Introduction: The Mucoepidermoid Carcinomas (MEC) represent about 5% of all tumors in the salivary glands. It is an aggressive lesion and must be considered as a diagnosis hypothesis in the oral mucosa proliferative lesions. The early diagnosis and the correct management of this neoplasm are key factors for the prognosis. Wide local resection and eventually postoperative radiotherapy is the choice treatment. Objective: To report the case of a patient with mucoepidermoid carcinoma of oral cavity, exteriorizing through the mouth and being submitted to surgical exeresis and radiotherapy that evolved to death on the fourth month from beginning of the treatment. Case Report: CT, 47 years old, white woman was forwarded to the ORL service of the HSJA after a critical bleeding episode in oral cavity. She reported the appearing of a mass with fast and expansive growth in a topography of canine fossa for +/- 06 months, associated to the loss of 10 kg. Patient dehydrated, pale with pediculated tumoration of +/- 06 cm, firm consistency, painless upon palpation and bleeding. Chronic alcoholic and smoker. Non-palpable cervical lymph nodes. Faced with the case we opted for a surgical resection of the tumor and the performance of histopathological exam that confirmed mucoepidermoid carcinoma of minor salivary glands. The patient was sent to the radiotherapy service; but she abandoned the treatment and evolved with death 4 months after. Final Comments: In this case, the fast and aggressive growth of the lesion, the size of the tumor and the abandonment of the proposed treatment was determinant for the patient's prognosis.

Central Mucoepidermoid Carcinoma of the Mandible: Case Report

Mucoepidermoid Carcinoma in a 12-Year-Old Boy / 소아알레르기및호흡기학회지

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.

Diagnostic value of nucleolar organizer regions [NORs] in salivary gland tumors

Nowadays, besides the ordinary staining, a variety of cell markers and immunohistochemistry methods are incorporated for distinction between neoplasms. But in the current situation, due to the high cost of most of these methods, cheaper and simpler way like silver nitrate staining should be sought for analyzing the nucleolar organizer dots. Therefore, this study was conducted to evaluate the distinction capability of silver nitrate within the benign and malignant neoplasms of the salivary glands. Silver nitrate staining was carried out for nucleolar organizer regions in 22 cases of the most common benign neoplasms of the salivary glands, namely pleomorphic adenoma, and 22 cases of common malignant neoplasms of salivary glands, consisting of 11 adenoid cystic carcinoma and 11 mucoepidermoid carcinoma cases. Twenty-two cases of normal salivary glands of the peripheral regions of the same samples were analyzed. The mean dots occurrences for normal salivary glands, pleomorphic adenoma, adenoid cystic carcinoma and mucoepidermoid carcinoma were 1.67 +/- 0.2, 2.32 +/- 0.39, 3.92 +/- 1.11 and 3.25 +/- 0.78 [for malignancies was 3.58 +/- 1], respectively. There were significant differences among benign and malignant, malignant and normal, and benign and normal groups [p<0.05]. This study purposed that the use of silver nitrate staining method is suitable for distinction of the benign and malignant neoplasms of salivary glands

Resecciones en manguito / Sleeve resection

La resección en manguito con conservación de parénquima pulmonar está indicada en una amplia variedad de lesiones tumorales benignas y malignas, así como inflamatorias endobronquiales. Se realizó la revisión de 6 pacientes a los cuales a 3 se les había practicado resección carinal y a 3 lobectomía en manguito. Las causas fueron un tumor carcinoide típico de bronquio superior izquierdo, un tumor mucoepidermoide de bronquio principal izquierdo con invasión de carina y los restantes fueron carcinomas epidermoides: 2 de bronquio principal derecho que infiltraba la carina y 2 del bronquio del lóbulo superior derecho que protruían hacia el bronquio principal. Las indicaciones fueron la toma de carina por el tumor,3 un tumor de bajo grado (carcinoide típico) con infiltración del bronquio principal correspondiente y en 2 pacientes que se consideró su estado general ofrecía alto riesgo de complicaciones y mortalidad si se realizaba una neumonectomía. Hubo una sola complicación que fue la sobreinfección de un pulmón atelectásico y no se presentó mortalidad posoperatoria. Se realizó la revisión de la literatura médica. La resección en manguito es una opción adecuada en el tratamiento quirúrgico de enfermos con lesiones endobronquiales benignas, tumores de bajo grado de malignidad y en casos seleccionados de carcinomas bronquiales(AU)

The resección in sleeve with pulmonary conservation of parénquima is indicated in an ample variety of benign tumorlike injuries and you vitiate, as well as inflammatory endobronquiales. The revision of 6 patients was made to who to 3 them carinal resección had practiced 3 and to lobectomía in sleeve. The causes were a typical carcinoide tumor of left superior bronchus, a mucoepidermoide tumor of left main bronchus with carina invasion and the rest were epidermoides carcinomas: 2 of main bronchus straight that infiltrated the carina and 2 of the bronchus of the superior lobe straight that protruían towards the main bronchus. The indications were the taking of carina by the tumor, 3 a tumor of low degree (carcinoide typical) with infiltration of the corresponding main bronchus and in 2 patients who considered their general state it offered stop risk of complications and mortality if a neumonectomía were made. There was a single complication that was the sobreinfection of a atelectásico lung and mortality did not appear posoperatoria. The revision of medical Literature was made. The resección in sleeve is an option adapted in the surgical treatment of patients with benign endobronquiales injuries, tumors of low degree of malignidad and in selected cases of bronchial carcinomas(AU)

Tumores primitivos de pulmón en pediatría / Primary pulmonary neoplasms in children

Los tumores primitivos pulmonares, endobronquiales y parenquimatosos, son extremadamente raros en niños, por lo que la experiencia individual en el diagnóstico, tratamiento y pronóstico es limitada. Nuestro trabajo muestra las formas de presentación, métodos de diagnóstico empleados y resultados en 17 pacientes que se atendieron en nuestro hospital entre los años 1991 y 2000. De los métodos de imágenes, la radiología permitió evaluar la sospecha de masa pulmonar, el US demostró su naturaleza sólida, quística o mixta y la presencia o no de derrame pleural, mientras que la TC delimitó su localización, extensión y metástasis, datos imprescindibles para el tratamiento quirúrgico adecuado. En los pacientes pediátricos que tienen lesión pulmonar ocupante de espacio, así como en los que debutan con neumotórax o hemotórax espontáneos, debe tenerse en cuenta la posibilidad de tumor primitivo de pulmón, debiéndose profundizar los estudios mediante US, TC y endoscopía. Las lesiones congénitas quísticas tienen riesgo de malignización, por lo que su tratamiento debe ser quirúrgico

A Case of Mucoepidermoid Carcinoma of Bronchus / 소아알레르기및호흡기학회지

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.

MUCOEPIDERMOID TUMOR: A CASE REPORT

Glandular odontogenic cyst : Report of three cases

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.

Malignant Pulmonary Neoplasms Causing Airspace Consolidation: CT Findings

PURPOSE: To determine the CT findings of consolidative malignant neoplasms of the lung. MATERIALS AND METHODS: Seventeen patients in whom pulmonary consolidation was seen on chest radiography were involved in this study. In all cases malignancy was subsequently proven; the neoplasms involved were bronchioloalveolar carcinoma (n = 9), malignant lymphoma (n = 4), mucoepidermoid tumor (n = 1), metastasis from colon cancer (n = 2), and metastasis from pancreatic mucinous adenocarcinoma (n =1). CT images were retrospectively analyzed in terms of enhancement pattern of the consolidation, morphologic appearance of an air-bronchogram, CT angiogram sign, pseudocavitation, and lymphadenopathy. RESULTS: Visually assessed enhancement pattern of the consolidation showed lower attenuation than adjacent muscles in bronchioloalveolar carcinoma (8/9) and metastasis (1/3); isoattenuation in malignant lymphoma (3/4), mucoepidermoid carcinoma (1/1), and metastasis (1/3); and higher attenuation in bronchioloalveolar carcinoma (1/9), malignant lymphoma (1/4), and metastasis (1/3). Among the 15 of 17 patients for whom an air-bronchogram was available, a stretching and squeezing pattern was seen in bronchioloalveolar carcinoma (4/9), malignant lymphoma (3/4), and metastasis (1/3). CT angiogram sign was identified in bronchioloalveolar carcinoma (5/9), malignant lymphoma (2/4), and metastasis (3/3). Pseudocavitation was observed in two patients with bronchioloalveolar carcinoma, while lymphadenopathy was seen in bronchioloalveolar carcinoma (4/9), malignant lymphoma (3/4), and metastasis (1/3). Conglomerate and extrathoracic lymphadenopathy are commonly associated with malignant lymphoma. CONCLUSION: Malignant neoplasms which apper as consolidative lung lesions appear not only as bronchioloalveolar carcinoma, which is well known, but also in other forms. Although these lesions cannot be differentiated on the basis of air-bronchography and CT angiography, poor enhancement of consolidative lesion and pseudocavitation are characteristic findings of bronchioloalveolar carcinoma, and conglomerate or extrathoracic lymphadenopathy are also characteristic of malignant lymphoma.

Clinicopathological Analysis of Glomerulonephritis with Asymptomatic Urinary Abnormalities in Children

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.

Mucoepidermoid Tumor of the Lacrimal Sac

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.

Fine Needle Aspiration Cytology of Mucoepidermoid Carcinoma of the Lung: A Case Report / 대한세포병리학회지

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.