[Non-alcoholic steatohepatitis induced by fast weight loss during the use of intragastric balloon--a case report].

Obesity is a chronic disease that has been considered an epidemic nowadays. It is associated to much co-morbidity, such as non-alcoholic fatty liver disease (NAFLD) and its complication, steatohepatitis. We report a case of a 58-year-old obese patient refractory to clinical treatment who was submitted to the use of intragastric balloon (BIB), developing steatohepatitis induced by fast weight loss.