ABSTRACT
Se presenta un caso de hemangioma intramuscular con flebolitos de lengua en una mujer de 60 años. Clínicamente correspondía a una tumefacción de dos años de evolución, sin signos que sugirieran su origen vascular. Luego de su evaluación inicial se realizó biopsia excéresis de la lesión para su estudio histopatológico. En el estudio histológico se pudo observar una formación tisular redondeada y circunscripta constituida por tejido conjuntivo fibroso con abundantes capilares congestivos que desplazaban el tejido muscular, destacándose la presencia de trombos con calcificaciones dispuestas en capas concéntricas (flebolitos). En base a estos hallazgos morfológicos, el diagnóstico definitivo fue de hemangioma capilar intramuscular con flebolitos de lengua. Para confirmar la naturaleza neoplásica vascular de la lesión se realizó inmunomarcación con el anticuerpo GLUT1. Es de destacar, de acuerdo a la revisión bibliográfica realizada en PubMed, que esta entidad patológica es rara, particularmente en la lengua.
Apresentamos um caso de hemangioma intramuscular com flebólitos de língua em uma mulher de 60 anos. Clinicamente, correspondia a um inchaço com duração de dois anos, sem sinais que sugerissem sua origem vascular. Após sua avaliação inicial, foi realizada biópsia excisional da lesão para estudo histopatológico. No estudo histológico pôde-se observar uma formação tecidual arredondada e circunscrita constituída por tecido conjuntivo fibroso com abundantes capilares congestivos que deslocavam o tecido muscular, destacando a presença de trombos com calcificações dispostos em camadas concêntricas (flebólitos). Com base nesses achados morfológicos, o diagnóstico definitivo foi de hemangioma capilar intramuscular com flebólitos de língua. Para confirmar a natureza neoplásica vascular da lesão, foi realizada imunocoloração com o anticorpo GLUT1. Ressalta-se, de acordo com a revisão bibliográfica realizada no PubMed, que esta entidade patológica é rara, principalmente na língua.
Summary We present a case of intramuscular hemangioma with tongue phleboliths in a 60-year-old woman. Clinically it corresponded to a swelling of two years of evolution, without signs that suggested its vascular origin. After her initial evaluation, an excisional biopsy of the lesion was performed for histopathological study. In the histological study it was possible to observe a rounded and circumscribed tissue formation made up of fibrous connective tissue with abundant congestive capillaries that displaced the muscle tissue, highlighting the presence of thrombi with calcifications arranged in concentric layers (phleboliths). Based on these morphological findings, the definitive diagnosis was intramuscular capillary hemangioma with tongue phleboliths. To confirm the vascular neoplastic nature of the lesion, histochemical immunostaining was performed with the GLUT1 antibody. It is noteworthy, according to the bibliographic review carried out in PubMed, that this pathological entity is rare, particularly in the tongue.
ABSTRACT
Abstract Objectives To evaluate the number of AgNORs per nucleus and the expression of Ki-67 at the tumor invasion front (TIF) in relation to clinical parameters (TNM), TIF classification and the prognosis of oral squamous cell carcinomas in an Uruguayan population. Material and Methods This study was conducted through a retrospective survey from 2000 to 2010 at the National Institute of Cancer Montevideo, Uruguay and included 40 patients. The samples were obtained from the resection of the tumor and the TIF was defined according with Bryne, et al.5 (1992). Expression of Ki-67 was assessed by the percentage of positive tumor cells and the AgNOR was recorded as the mean AgNOR (mAgNOR) and the percentage of AgNOR per nucleus (pAgNOR). All analyzes were performed by a blinded and calibrated observer. Results No statistically significant association was observed between immunostaining of Ki-67 and AgNOR with the different types of TIF, regional metastasis and patients prognosis, however it was observed an increase in Ki-67 expression associated with worse patient's clinical staging, although not statistically significant. Conclusions Our results suggest that proliferation markers as AgNOR and Ki-67 are not prognostic markers at the tumor invasive front of carcinoma of oral squamous cell.