CEACAM5 and autosomal dominant cerebellar ataxia: In a meta-analysis comparing glucose to CEA, glucose testing had significantly higher sensitivity and diagnostic accuracy than CEA alone (91% vs. 56% and 94% vs. 85%, respectively) in differentiating between precancerous cysts, such as IPMNs and MCN, and non-mucin-producing cysts, such as SCA and pseudocyst [45].