The Cytological and Electron Microscopic Studies on the Primary Carcinoma of the Fallopian Tube

Primary carcinoma of the Fallopian tube is the least common malignancy of the female genital tracts. 1) A case of primary carcinoma of the Fallopian tube, which was preoperatively diagnosed by positive vaginal smears, was reported. 2) Eighty cases of primary carcinoma of the Fallopian tube have been reported in Japan. These, with a additional one case presented here, make a total eighty one cases in this country. 3) As many authors have reported, accurate preoperative diagnosis of this malignant disease is difficult. If the vaginal cytology is positive and suggestive of adenocarcinoma without malignant lesion in either uterine cervix and body, one should also suspect the tube as the site of a primary lesion. Effectiveness of cytology for diagnosis of primary carcinoma of the Fallopian tube was emphasized. 4) Electron microscopic study has scarcely been reported. In this paper, scanning and transmission electron microscopical observations were reported.