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1.
Int. j. odontostomatol. (Print) ; 13(1): 82-88, mar. 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-990069

ABSTRACT

RESUMEN: Los oncocitos son células originadas probablemente por transformación metaplásica del epitelio ductal o acinar de parótida y submandibular. Su proliferación puede originar condiciones patológicas que incluyen hiperplasias oncocíticas adenomatosas multinodulares (HOAM), oncocitomas y carcinomas oncocíticos. Los tumores oncocíticos constituyen el 1 % de todos los tumores salivales y entre el 82 y 90 % se desarrollan en la parótida; el resto se divide entre la glándula submandibular y las glándulas salivales menores. Las hiperplasias oncocíticas multinodulares son extremadamente raras. En el presente trabajo se analizaron 5 casos de oncocitomas de parótida y dos casos de HOAM, uno de parótida y otro de submandibular y se describieron las características estructurales e inmunohistoquímicas de los oncocitos. Cortes seriados de las biopsias incluidas en parafina se colorearon con Hematoxilina - Eosina, Hematoxilina/ácido fosfotúngstico (PTA/H), PAS y se marcaron con AC antimitocondrial, CK 5/6, CK 20 y EMA. Los tumores mostraron un crecimiento nodular encapsulado por tejido conectivo denso. En los cortes histológicos se identificaron oncocitos eosinófilos (oscuros) y granulaciones violáceas con PTA/H. En dos casos de parótida y el caso de HOAM de submandibular presentaron además oncocitos claros PAS positivos. La inmunomarcación fue positiva en todas las células siendo la marcación para mitocondrias periférica en los oncocitos claros. Las células eosinofílicas PTA/H positivas y con fuerte marcación con AC antimitocondrial, CKs y EMA confirman el diagnóstico de patología oncocítica. En tres casos coexisten oncocitos claros y oscuros. Las células claras son oncocitos que acumulan glucógeno en su citoplasma desplazando a las mitocondrias hacia la periferia. En el diagnóstico diferencial de este tumor debemos considerar los tumores salivales con células claras, el carcinoma renal metastásico, el tumor de Whartin, la variante de células claras del carcinoma epitelial/mioepitelial y el carcinoma mucoepidermoide con metaplasia oncocítica.


ABSTRACT: Oncocytes are cells probably originated by metaplastic transformation of the ductal or acinar epithelium of parotid and submandibular. Its proliferation can cause pathological conditions that include multinodular adenomatous oncocytic hiperplasia (HOAM), oncocytomas and oncocytic carcinomas. Oncocytic tumors make up 1 % of all salivary tumors and between 82 and 90 % develop in the parotid; the rest of the tumors are divided between the submandibular gland and the minor salivary glands. Multinodular oncocytic hyperplasias are extremely rare. In the present work we analyzed five cases of parotid oncocytomas and two cases of HOAM, one of parotid and the other of submandibular; structural and immunohistochemical characteristics of the oncocytes were described. Biopsies were included in paraffin, serial cuts were stained with H&E, Hematoxylin / phosphotungstic acid (PTA / H), PAS and were marked with antimitochondrial AC, CK 5/6, CKs 20 and EMA. The tumors showed a nodular growth encapsulated by dense connective tissue. The histological cuts showed dark eosinophilic oncocytes and violaceous granulations with PTA / H. In two cases of parotid and the case of submandibular HOAM, PAS positive clear oncocytes were also present. The immunostaining was positive in all the cells, being the labeling for peripheral mitochondria in the clear oncocytes. Eosinophilic cells PTA / H positive with strongly marked with antimitochondrial AC, CKs and EMA confirm the diagnosis of oncocytic pathology. In three cases, light and dark oncocytes coexist. Clear cells are oncocytes that accumulate glycogen in their cytoplasm, displacing the mitochondria to the periphery. In the differential diagnosis we should consider salivary tumors with clear cells, metastatic renal carcinoma, Whartin's tumor, the clear cell variant of epithelial / myoepithelial carcinoma and mucoepidermoid carcinoma with oncocytic metaplasia.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Salivary Gland Neoplasms/pathology , Adenoma, Oxyphilic/pathology , Submandibular Gland Neoplasms/pathology , Immunohistochemistry , Oxyphil Cells/pathology , Diagnosis, Differential
2.
Int. j. odontostomatol. (Print) ; 11(4): 475-479, dic. 2017. tab, graf
Article in English | LILACS | ID: biblio-893291

ABSTRACT

ABSTRACT: Pleomorphic adenoma (PA) is the most common benign salivary gland neoplasm and it is frequently diagnosed in the third and fourth decade with predilection for women. PA is the most common benign lesion of minor salivary glands in children and adolescents, being the palate one of the most frequently affected site of minor salivary glands. Herein, we present a case report of a PA of the hard palate diagnosed in a 15-year-old female and a review of the Englishliterature of the reported cases of PA in children and adolescents in the hard palate.


RESUMEN: El adenoma pleomórfico (AP) es la neoplasia benigna más común de las glándulas salivales y se diagnostica frecuentemente en la tercera y cuarta década con predilección por las mujeres. El AP es la lesión benigna más común de las glándulas salivales menores en niños y adolescentes, siendo el paladar uno de los sitios más frecuentemente afectados de las glándulas salivales menores. En este trabajo se presenta un relato de caso de un AP de paladar duro diagnosticado en una mujer de 15 años de edad y una revisión de la literatura en inglés de los casos reportados de AP en niños y adolescentes en paladar duro.


Subject(s)
Humans , Female , Adolescent , Submandibular Gland Neoplasms/diagnosis , Adenoma, Pleomorphic/diagnosis , Biopsy , Submandibular Gland Neoplasms/pathology , Adenoma, Pleomorphic/pathology , Microscopy
4.
Article in English | IMSEAR | ID: sea-157384

ABSTRACT

Sialoangiolipoma is extremely rare in adults. We report a case with an extremely unusual and atypical presentation of sialangolipoma of submandibular gland. The diagnosis of which is done on histopathology in a case with high index of clinical suspicion of pleomorphic adenoma.


Subject(s)
Adenoma, Pleomorphic/diagnosis , Adenoma, Pleomorphic/pathology , Angiolipoma/diagnosis , Angiolipoma/pathology , Female , Humans , Middle Aged , Submandibular Gland/pathology , Submandibular Gland Neoplasms/diagnosis , Submandibular Gland Neoplasms/pathology
5.
West Indian med. j ; 58(4): 388-391, Sept. 2009. graf, tab
Article in English | LILACS | ID: lil-672506

ABSTRACT

OBJECTIVE: This study presents a clinicopathologic review of cases of submandibular salivary gland tumours at the Lagos University Teaching Hospital, Nigeria, over a period of 17 years. METHODS: The records of all patients with histological diagnosis of submandibular salivary gland tumours at the Lagos University Teaching Hospital over a period of 17 years (January 1990 to December 2006) were retrospectively reviewed. Parameters studied were; age and gender of patients, symptoms and duration ofsymptoms, and histological diagnosis. RESULTS: A total of 36patients with submandibular gland tumours were seen during the period. Maleto-female ratio was 1.8:1 (male = 23, female = 13). Mean age (± SD) at presentation was 43 (± 19) years (age range, 17-84 years). There were 19 malignant tumours and 17 benign ones. Pleomorphic adenoma (36.1%) was the most frequent tumours, followed by adenoid cystic carcinoma (11.1%), anaplastic carcinoma (11.1%) and malignant lymphoma (11.1%). Patients with histological diagnosis of malignant tumours were significantly older than those with benign tumours (p = 0.01). Most patients (80.6%) presented with painless swelling. CONCLUSION: Malignant submandibular salivary gland tumours were slightly more than the benign ones in the studied population. Painful swelling or ulceration is indicative ofa malignant submandibular gland tumour.


OBJETIVO: Este estudio presenta una revisión clinicopatológica de casos de tumores de la glándula salival submandibular en el Hospital Docente de la Universidad de Lagos, Nigeria, por un periodo de 17 años. MÉTODOS: Se revisaron retrospectivamente las historias clínicas de todos los pacientes con el diagnóstico histológico de los tumores de la glándula salival submandibular en el Hospital Docente de la Universidad de Lagos, correspondientes a un periodo de 17 años (de enero de 1990 a diciembre de 2006). Los parámetros estudiados incluyeron: la edad y el género de los pacientes, síntomas y duración de síntomas, y diagnóstico histológico. RESULTADOS: Un total de 36 pacientes con tumores de la glándula de submandibular fueron atendidos durante ese periodo. La proporción varón:hembra fue 1.8:1 (varones = 23, hembras = 13). La edad promedio (± SD) al momento de su presentación fue 43 (± 19) años (rango de edad, 17-84 años). Hubo 19 tumores malignos y 17 benignos. El adenoma pleomórfico (36.1%) fue el tipo de tumor más frecuente, seguido por el carcinoma cístico adenoideo (11.1%), el carcinoma anaplástico (11.1%) y el linfoma maligno (11.1%). Los pacientes con diagnóstico histológico de tumores malignos eran significativamente de más edad que los que tenían tumores benignos (p = 0.01). La mayoría de los pacientes (80.6%) presentaban hinchazón sin dolor. CONCLUSIÓN: Los tumores malignos de la glándula salival submandibular fueron ligeramente mayor en número que los benignos en la población estudiada. Hinchazón dolorosa o la ulceración dolorosas son indicios de un tumor maligno de la glándula submandibular.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult , Submandibular Gland Neoplasms/diagnosis , Adenoma, Pleomorphic/diagnosis , Adenoma, Pleomorphic/pathology , Carcinoma, Adenoid Cystic/diagnosis , Carcinoma, Adenoid Cystic/pathology , Carcinoma/diagnosis , Carcinoma/pathology , Lymphoma/diagnosis , Lymphoma/pathology , Retrospective Studies , Submandibular Gland Neoplasms/pathology
6.
Indian J Ophthalmol ; 2008 Jan-Feb; 56(1): 75-6
Article in English | IMSEAR | ID: sea-70126

ABSTRACT

Metastatic tumor is the most common uveal malignancy. However, choroidal metastasis from a salivary gland neoplasm is extremely rare. We report a case of bilateral, multifocal choroidal metastasis from carcinoma of the submandibular gland.


Subject(s)
Carcinoma, Adenoid Cystic/diagnosis , Choroid Neoplasms/diagnosis , Female , Humans , Middle Aged , Submandibular Gland Neoplasms/pathology
7.
Rev. Assoc. Med. Bras. (1992) ; 53(3): 267-271, maio-jun. 2007. tab
Article in Portuguese | LILACS | ID: lil-460395

ABSTRACT

As neoplasias das glândulas salivares são afecções que constituem aproximadamente 3 por cento de todos os tumores da cabeça e pescoço. O tratamento cirúrgico adequado depende do correto conhecimento do tipo histológico, principalmente quando se trata de lesões malignas. Dessa maneira, a correta determinação do diagnóstico histológico pré-operatório auxilia em muito o planejamento terapêutico, porém, geralmente, isto é difícil de se estabelecer baseado apenas nos achados da história, exame clínico e de imagem. OBJETIVOS: O presente estudo avalia comparativamente os resultados de exames citológicos obtidos através de punção aspirativa com agulha fina (PAAF) de tumores de glândulas salivares, realizados no período pré-operatório, com os dados histológicos de espécimes cirúrgicos, analisando a sensibilidade, especificidade e acurácia do método quanto ao diagnóstico de malignidade e benignidade. MÉTODOS: Estudo retrospectivo de 73 prontuários de pacientes portadores de neoplasia de glândulas salivares, todos submetidos a tratamento cirúrgico. RESULTADOS: Obtivemos 87,9 por cento de sensibilidade e 85,7 por cento de especificidade para diagnóstico de tumores benignos; sensibilidade de 42,9 por cento e especificidade de 98,3 por cento para diagnóstico de tumores malignos. O valor global da acurácia foi de 87,7 por cento, o valor preditivo positivo de 85,7 por cento e o negativo de 87,8 por cento para diagnóstico de malignidade com a PAAF. CONCLUSÃO: Concluiu-se que a PAAF como método diagnóstico auxiliar, pode ser útil na avaliação pré-operatória, especialmente se o diagnóstico for de malignidade, contribuindo assim para um melhor planejamento cirúrgico do doente.


Neoplasms of salivary glands represent almost 3 percent of all head and neck tumors. Proper surgical treatment depends upon accurate histological findings, especially in the case of malignant lesions. As such, knowledge of correct cytological findings prior to surgery is important for therapeutic planning. This is not easily established since it is usually based only on the patients' clinical history and imaging exams OBJECTIVE: To evaluate results obtained from fine needle aspiration biopsy (FNAB), comparing them to the histological findings of the respective surgical specimens and analyzing the sensitivity, specificity and accuracy of this method in relation to the diagnosis of malignancy or benignancy. METHODS: Retrospective study with the medical records of 73ee patients' who had salivary gland neoplasms and were submitted to FNAB and surgical treatment. RESULTS: Data disclosed that values of sensitivity were 87.9 percent and specificity 85.7 percent for diagnosis of benign tumors. For malignant tumors 42.5 percent of sensitivity and 98.3 of specificity, were observed. Overall values of accuracy were, respectively, 85.7 percent and 87.8 percent for positive and negative predictive values in the diagnosis of malignancy by FNAB. CONCLUSIONS: It was shown that FNAB, as supplementary diagnostic method, can be useful for preoperative evaluation and surgical planning especially for malignant neoplasms.


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Adenoma, Pleomorphic/pathology , Biopsy, Fine-Needle/standards , Salivary Gland Neoplasms/pathology , Adenoma, Pleomorphic/surgery , False Negative Reactions , False Positive Reactions , Parotid Gland/pathology , Parotid Neoplasms/pathology , Parotid Neoplasms/surgery , Retrospective Studies , Sensitivity and Specificity , Salivary Gland Neoplasms/surgery , Submandibular Gland Neoplasms/pathology , Submandibular Gland Neoplasms/surgery , Submandibular Gland/pathology
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