Abstract
Background: Primary fallopian tube cancer is an extremely rare gynecological malignancy. Aim: To discuss, through a case report, the diagnostic process by means of cytology immunohistochemistry. Case Presentation: A 47-year-old Japanese woman, who also had lung cancer, presented with enlarged para-aortic lymph node without any symptoms. Based on the vaginal cytology report suggestive of gynecologic malignant tumor (possibly fallopian tube adenocarcinoma), primary surgery comprised of total abdominal hysterectomy and bilateral salpingo-oophorectomy was performed. Histopathology and immunohistochemistry examinations revealed primary fallopian tube carcinoma with metastasis of para-aortic lymph node. She is free from recurrence and metastases 9 months after the surgery and chemotherapy. Conclusion: Although primary fallopian tube cancer is a rare gynecologic malignancy, vaginal cytology may be useful for detecting fallopian tube carcinoma.
Highlights
Primary fallopian tube cancer is extremely rare, accounting for 0.14% - 1.8% of malignancies in women annually [1] [2] [3] [4]
We report here a case of the right fallopian tube cancer, which was discovered by the vaginal smear during the close inspection of para-aortic adenopathy found when general searching metastasis of the right upper lobe lung cancer
We suspected the metastatic lesion was derived from malignancy in organ other than lung. Her vaginal smear was positive for adenocarcinoma (Figure 3(A)), the pelvic contrast magnetic resonance imaging (MRI) examination did not show any abnormalities in the uterine corpus, uterine cervix, and bilateral adnexa
Summary
Primary fallopian tube cancer is extremely rare, accounting for 0.14% - 1.8% of malignancies in women annually [1] [2] [3] [4]. The etiology of this malignancy is unknown. Several case reports described usefulness of cervical or vaginal smears for the diagnosis of fallopian tube cancer. Positive Papanicolaou (Pap)-stained smears have been reported in only 0% - 2.3% of cases [4] The diagnosis of this malignancy is usually first made by a pathologist on histopathological examinations. We report here a case of the right fallopian tube cancer, which was discovered by the vaginal smear during the close inspection of para-aortic adenopathy found when general searching metastasis of the right upper lobe lung cancer. The tubal cancer was very small and the patient had no significant clinical signs, we noticed its metastasis to the para-aortic lymph node
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