Laparoscopic interval surgery for stage 4 primary fallopian tube carcinoma—a case report
© Springer-Verlag 2009
Received: 21 June 2009
Accepted: 9 July 2009
Published: 1 August 2009
Primary fallopian tube carcinoma (PFTC) is an uncommon malignancy of the female genital tract. Rationale for treatment of PFTC is similar to epithelial ovarian cancer (EOC) due to pathological similarities and pattern of disease spread. Surgical cytoreduction of advanced stage or large volume disease has been by laparotomy and debulking. We present the first case of laparoscopic interval surgery (IS) for stage IVb PFTC minimising peri-operative morbidity with no delay in resuming chemotherapy. This case demonstrates that there exists a role for laparoscopic surgery in selected patients which should be explored.
KeywordsPrimary fallopian tube carcinoma Epithelial ovarian cancer Interval surgery Cytoreduction Laparoscopy
Primary fallopian tube carcinoma (PFTC) is one of the least common malignancies of the female genital tract accounting for less than 1% of all gynaecological tumours worldwide. Traditionally, advanced stage disease is treated by laparotomy and debulking followed by chemotherapy following the principles of management of epithelial ovarian cancer (EOC).
Neo-adjuvant chemotherapy followed by interval debulking surgery (IDS) is increasingly seen as a valid treatment option for advanced stage EOC and PFTC and its use is supported by the evidence from the recent EORTC-GCG/NCIC-CTG randomised trial . This generally involves open debulking to attain optimal cytoreduction.
We present the first reported use of laparoscopic IS in a patient with stage 4 PFTC enabling early recovery and quicker recommencement of adjuvant chemotherapy.
Following discussion at the gynae-oncology multi-disciplinary team meeting (MDT), neo-adjuvant chemotherapy was recommended and following consultation with the patient, chemotherapy was commenced with 3-weekly carboplatin and paclitaxel. CT scan was repeated following cycle 4 which showed an excellent response with complete resolution of the pelvic and PA nodes, reduction in the size of the mass in the anterior triangle of neck and no evidence of abdominal disease. Her CA-125 had dropped to 62. Her case was rediscussed at the MDT and the option of IS debated including the possible merits of PA node dissection. The patient’s wishes were taken into consideration as she was keen to avoid major surgery if possible. It was decided to perform a further laparoscopic assessment and cytoreductive surgery. The MDT decided that PA node dissection was not worthwhile as these nodes had greatly diminished in size and resection of these would not add greatly to her outcome and prognosis in view of her enlarged SCL nodal disease at presentation.
Successful laparoscopic surgery was carried out 20 days after her fourth cycle of chemotherapy and included a laparoscopic total hysterectomy, bilateral salpingo-oopherectomy with stripping of the surrounding pelvic peritoneum and supracolic omentectomy. The surgery was carried out using Harmonic ACE™. At laparoscopy, there was no ascites, uterus was of normal size and mobile with a small volume left adnexal mass present. There was no obvious uterine serosal disease or omental nodularity but the pelvic peritoneum in the left adnexum appeared abnormal and was widely excised en bloc together with the uterus, tubes and ovaries. The liver and diaphragm appeared normal. All visible disease was excised but no node dissection was performed. Blood loss was 200 mL and she made a routine postoperative recovery and was discharged the following day. The histology showed carcinoma within the full thickness of the left fallopian tube and paratubal tissue extending into the serosa at the left cornua of the uterus. Left ovary, right tube, ovary, parametria, uterus, cervix and omentum were free of disease. Excision margins were clear of disease. She restarted her chemotherapy 2 days post-operatively with no delay in her treatment schedule. She is 20 months post treatment and disease free.
PFTC was first reported by Orthmann in 1888 . PFTC is a very rare malignancy and accounts for less than 2% of malignancies diagnosed among women worldwide with 1,200 cases reported worldwide in the literature . Early stage disease may present with vaginal discharge or post-menopausal bleeding. PFTC may also be mistaken for EOC at initial diagnosis and during histological examination of staging biopsies as the histological and biological features of both are similar (papillary serous adenocarcinoma) . Population-based cancer registries in the USA show 3,051 PFTC cases diagnosed during 1998 to 2003 and the incidence is reported as 0.41 per 100,000 women .
Clear histological criteria for differentiating PFTC from other gynaecological malignancies was described in 1950 and later modified by Sedlis in 1961 and 1978 which stated the main tumour must arise from the endosalpinx with smaller or no tumour in the ovaries and endometrium which is met by our case . As the histology and patterns of spread of disease are similar, treatment of PFTC shadows the treatment of EOC and advocates extensive cytoreductive surgery followed by chemotherapy .
Minimally invasive surgery is recommended in early stage disease for staging or re-staging following an unexpected diagnosis of malignancy and in advanced disease to assess extent of disease and resectability prior to proceeding to a laparotomy . Laparoscopic surgery is not generally recommended for majority of ovarian cancers due to limitations of dealing with large tumour volumes and the potential risk of dissemination of tumour cells by the pneumoperitoneum. Concerns related to laparoscopic surgery also include incomplete staging by sub-optimal assessment of peritoneal/mesenteric/nodal disease, tumour spillage and port site metastasis .
We routinely advocate node dissection (pelvic and para-aortic) for patients with EOC for both staging and cytoreductive purposes. PA node dissection was discussed following chemotherapy but this patient already had confirmed stage IVb disease due to positive SCL node biopsy. As SCL neck dissection was not going to be entertained and she had shown complete resolution of her pelvic and PA nodes, laparoscopic excision was offered to reduce surgical morbidity and early resumption of chemotherapy. Laparoscopic surgery has the advantage of less morbidity, shorter recovery and early restarting of chemotherapy . This case illustrates the benefits of an initial staging laparoscopy in the management of these cases which influenced subsequent decision making.
We recognise that large studies with greater number of patients to assess the feasibility, safety and success of laparoscopic surgery for stage IV PFTC or stage IV EOC will be difficult to achieve due to low incidence of these tumours.
In conclusion, we believe there is a role for laparoscopic cytoreduction in selected patients diagnosed with stage IV PFTC or stage IV EOC following good response to neo-adjuvant chemotherapy.
Conflict of interest
There is no actual or potential conflict of interest in relation to this article.
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