So-called "overlap syndromes" in hepatology: combinations or associations of concurrent autoimmune liver and other diseases.

Based on present knowledge, the so-called "overlap syndromes" consisting of autoimmune liver diseases do not constitute entities in their own right. Likewise, no generally accepted marker such as an autoantibody is so far known. It would, therefore, be more correct to speak of combinations or associations of two or more concurrent diseases. Sixteen such combinations are considered here.