Can smoking cause or increase chances of heterogeneous liver with fatty infiltration? I was an cocaine user many years ago, for several years ago. Could that have caused it? What are the dangers, if any? I am having an MRI with and without contrast in two weeks and was told to follow up with these tests every six months. I am 63 year old female, with type ll diabetes and a poor diet, three pregnancies at ages 23,24 & 26. I have also recently gained twenty pounds and have a severe sweet tooth. Thank you.