Adenocarcinoma Polimorfo de Baixo Grau de Malignidade: estudo clínicopatológico de 70 casos

Abstract

The polymorphous low grade adenocarcinoma (PLGA) is a tumor characterized by cytological uniformity, several morphologies, infiltrative the growth pattern and low metastasis potential. Were raised retrospectively the cases of neoplasm located in the salivary glands, from National Cancer Institute (NCI) - Ministry of Health, Rio de Janeiro, during the period 1997-2006. Statistical analysis was developed from tests, as recommended by GraphPadPrism software, Version 5.0 for Windows, GraphPad Software, Inc., 2007, San Diego, California, USA. The average age was 58.7 years, prevailing in women and Caucasian and evolution time average of 16 months. There were four cases with transformation in high grade and one of multiple tumors. Although it’s low-grade, transformations are possible in high-grade and tumors whose expression cisticopapilar pattern is prominent should be reported to the surgeon for treatment to be better directed.