内容液CA19-9およびCA-125が高値を呈した後腹膜漿液性嚢胞の1例

Abstract

67歳女.後腹膜漿液性嚢胞例を経験した.本例の嚢胞液中CA125, CA19-9が高値を呈し, 免疫染色にて各々の局在が証明できた初めての症例であった

A 67-year-old female presented with left abdominal distension. A huge retroperitoneal cystic mass, measuring over 20 cm in diameter, was found below the left kidney. The cyst was punctured percutaneously, and serous fluid was aspirated. It was noted that the concentrations of CA125 and CA19-9 in the fluid of the cyst were extremely elevated while those in the serum were normal. The cyst was resected easily without any adhesion. Microscopically, the cyst was lined with a mixture of ciliated and cuboidal serous cells and columnal mucinous cells. Immunohistochemical staining of the cyst wall proved positive for CA125 on serous cells, and for CA19-9 on mucinous cells.