Single center study of 2741 ANA tests: 65% ANA negative, 31% ANA+ w/ nuclear staining patterns, & 2.0% ANA+ w cytoplasmic staining. Cytoplasmic - most were reticular, dense fine speckled next. Reticular assoc w/ primary biliary cholangitis (w/ Abs against M2). Dense fine https://t.co/SfBY9BShax