[Two cases of CA19-9 producing pulmonary papillary adenocarcinoma].

Two cases of CA 19-9 producing pulmonary papillary adenocarcinoma were reported. Pathological examination showed a well differentiated papillary adenocarcinoma with partially bronchiolo-alveolar cell type. Immunohistochemical study showed a positive straining for CA 19-9 on tumor cells. The level of CA 19-9 decreased after lobectomy and anti-cancer chemotherapy using CDDP and VDS. The series of CA 19-9 level is very useful to evaluate the effect of surgery and chemotherapy. Also it is useful to find out the recurrence of carcinoma.