CEACAM5 and cyst: In the study by Khoury and colleagues, 42.4% of patients with pancreatic mucinous cysts had a CEA level higher than 192 ng/mL, which is close to our results.16 In the study of Kurita et al in Japan, the sensitivity of cyst fluid CEA measurement for diagnosing mucinous cysts was 60.9%, and its diagnostic accuracy was 71.8%,13 a sensitivity close to our study.