病人,女,39岁。因反复右上腹痛半年入院,无发热黄疸。查体:腹软,剑突下偏右轻度深压痛,无腹块,肝脾未及。肝功生化及ＣＥＡ,ＣＡ19-9检测正常。Ｂ超发现近肝门处局限性胆管扩张,ＭＲＣＰ示右肝管2ｃｍ×2ｃｍ球形囊状扩张,界清均匀,无结石或占位影征,诊断为右肝管囊肿,未行ＥＲ Patient, female, 39 years old. Due to repeated right upper abdominal pains admitted to hospital for six months, no fever jaundice. Physical examination: Soft abdomen, mild tenderness under the xiphoid surface, no abdominal mass, no liver and spleen. Liver biochemistry and CEA and CA19-9 tests were normal. B-scan findings of localized bile duct dilatation near the porta hepatis, MRCP showed right hepatic duct 2cm x 2cm spherical cystic dilatation, uniform clear boundary, no calculi or occupying shadow sign, diagnosis of right hepatic duct cyst, no ER