RESUMEN
OBJECTIVE: This article presents the results of a retrospective study of the frequency and classification of odontogenic tumors recorded at four centers of diagnostic pathology in Rio de Janeiro, Brazil. STUDY DESIGN: All medical records and microscopic slides of odontogenic tumor specimens for the years 1997 to 2007 were retrieved from the files of four services of diagnostic pathology in Rio de Janeiro City. Diagnoses were re-evaluated and the tumors classified according to the latest (2005) World Health Organization Classification of Tumors. RESULTS: A total of 201 odontogenic tumors were found among 15,758 oral biopsies (1.3%). The frequencies of these tumors at the four centers ranged from 0.5% at the National Cancer Institute to 3.3% in a private laboratory. Chi-square analysis revealed statistically significant differences (p<0.05) between the proportions of odontogenic tumors in the studied centers. Of these, 94.5% were benign and 5.5% were malignant. Keratocystic odontogenic tumor (32.3%) was the most frequent lesion, followed by ameloblastoma (29.8%) and odontoma (18.4%). CONCLUSIONS: Odontogenic tumors are uncommon in Brazil. Different pathology laboratories reported divergent frequencies of odontogenic tumors, which may reflect institutional specializations and the patient populations served.
Asunto(s)
Tumores Odontogénicos/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Brasil , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Tumores Odontogénicos/clasificación , Tumores Odontogénicos/epidemiología , Estudios Retrospectivos , Adulto JovenRESUMEN
A pneumonia lipoídica é uma condição pulmonar incomum que,freqüentemente, se apresenta com início insidioso.Essa doença tem duas formas clínicas: endógena e exógena.A causa mais comum de pneumonia lipoídica exógena é a aspiraçãocrônica de óleo mineral,usado como substância laxativa. O óleo mineral, relativamente inerte, é inicialmente emulsificado e ingerido por macrófagos.Com repetidas aspirações, o óleo mineral pode provocar uma reação de corpo estranho,que pode resultar em fibrose.Relatamos um caso de um homem, com história prévia de acidente vascular encefálico, que apresentava como seqüela alteração da deglutição, com engasgos frequentes, além de sequela motora à esquerda.O paciente tinha históriade ingestão crônica de laxantes contendo óleo mineral.A broncofibroscopia com biópsia transbrônquica confirmou odiagnóstico de pneumonia lipoídica pela histopatologia.