Hi. What do u mean by an Ultrasound impression of diffuse liver parenchymal disease but the patient has no vices and no history hepatitis infection?

That is a. nonspecific description that could be due to a variety of metabolic, infectious/inflammatory, medication induced, or neoplastic processes. Most commonly this finding is due to benign fatty infiltration(which itself has numerous causes). The finding needs to be interpreted in conjunction with your entire clinical/lab evaluation to determine its significance, so you need to talk to your doc.