Cancer of the vulva

Review effects of radiation treatment on HPV-related vulvar cancer: a meta-analysis and systematic review

Objective

Vulvar carcinoma exhibits a robust correlation alongside HPV infection; however, the impact of HPV rank on the prognostic outcomes of radiation therapy within vulvar malignancies stays ambiguous. In the present study, we performed a comprehensive examination as well as meta-analysis to assess the influence of infection with HPV upon the long-term outlook as well as sensitivity of individuals with vulvar cancer undergoing radiation therapy.

Methods

A meticulous examination of the existing research was conducted in accordance with the guidelines outlined in the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. A thorough search was conducted in the PubMed, Embase, Web of Science, as well as Cochrane Library databases, covering the entire available literature till April 1, 2023. The studies that met the inclusion criteria contained data about HPV infection and oncological outcomes in patients with vulvar cancer who received radiation therapy. This study was registered in PROSPERO (CRD42023417957).

Results

We identified 12 retrospective studies meeting our inclusion criteria, which included a total of 3967 patients. Patients with HPV-associated vulvar cancer achieved a better overall survival rate after radiotherapy (HR=0.71, 95%CI: 0.54-0.93, P=0.01), and showed a significant improvement in disease-free survival (HR=0.75, 95%CI: 0.58-0.97, P=0.09) and progression-free survival (HR=0.31, 95%CI: 0.22-0.45, P,<0.01). Meanwhile, the complete remission rate after radiotherapy was higher for HPV-associated vulvar cancer patients (M-H=4.02, 95% CI: 1.87-8.61, P=0.0003), and the local control rate was better (HR=1.90, 95% CI: 1.15-3.15, P=0.01), exhibiting a reduced incidence of relapse within the field of study (HR=0.21, 95% CI: 0.10-0.42, P<0.001).

Conclusion

In comparison to HPV-independent vulvar squamous cell carcinoma, patients with HPV-associated vulvar cancer exhibit higher sensitivity to radiotherapy, with a significant difference in prognosis. Further research should investigate the mechanisms underlying this high sensitivity to radiotherapy caused by HPV, and should be evaluated using high-quality randomized controlled trials.

Activation of G-Protein-Coupled Estrogen Receptor 1 (GPER1) Reduces Progression of Vulvar Carcinoma Cells

Whether G protein-coupled estrogen receptor 1 (GPER1) is tumor-promoting or tumor-suppressive depends in part on tumor entity. Little is known about the function of GPER1 in vulvar carcinoma. In this work, we aim to clarify what role GPER1 plays in vulvar cancer, tumor-promoting or tumor-suppressive. Localization of GPER1 in A431 and CAL-39 vulvar carcinoma cells was examined by immunofluorescence. Using a tissue microarray of vulvar neoplasias, the correlation between GPER1 expression and grade of malignancy was investigated. A431 and CAL-39 cells were treated either with GPER1 agonist G1 or antagonist G36. Proliferation was quantified by BrdU assay and viability examined using Resazurin assay. Morphological changes were analyzed by microscopy and measured using ImageJ. Cell migration was analyzed by gap closure assay. Clonogenic potential was tested by colony and sphere formation. Expression of estrogen receptors was examined by Western blot. GPER1 was found consistently expressed in vulvar neoplasia tissues. The immune-reactive score was found to be significantly higher in tissue samples of lymph node metastases and neoplasias with grade 3. In A431 and CAL-39 vulvar carcinoma cells, GPER1 expression was mainly found in the cytoplasm and nuclei. Treatment of A431 and CAL-39 cells with GPER1 agonist G1 resulted in a decrease in proliferation and migration. In addition, colony formation and tumor sphere formation were reduced. Furthermore, morphological signs of necrosis and reduction in cell viability after G1 treatment were observed. The GPER1 antagonist G36 did not have significant effects on vulvar carcinoma cells. Neither agonist G1 nor antagonist G36 treatment resulted in altered expression of estrogen receptors. Activation of GPER1 with GPER1 agonist G1 reduces the tumorigenic potential of the vulvar carcinoma cells. It can be deduced from this that GPER1 appears to have a tumor-suppressive effect in vulvar carcinoma.

Carcinoma vulva: Ten years experience in a teaching institution of North India

Introduction

Vulvar carcinoma is primarily a disease of post-menopausal women. Surgery is a primary treatment strategy. Chemotherapy and radiotherapy are a part of multimodal therapy. Presently, there is a shift towards neoadjuvant chemotherapy or radiotherapy so as to decrease the surgical morbidities.

Objective

To study the surgical outcome and prognostic factors in Ca vulva patients.

Methodology

A retrospective analysis of 19 vulvar cancer patients, surgically treated at a teaching institution of Punjab (2009-2019).

Results

Mean age of the patients was 60.95 years. Ulcerative swelling (89.5%) over labia majora (73.7%) was the main presenting symptom. Radical vulvectomy-bilateral IFLN dissection was performed in 74% patients, hemivulvectomy-unilateral IFLN dissection in 21% patients and wide local excision in one patient. Squamous cell carcinoma was detected in all, and one had verrucous carcinoma. Thirty-seven per cent patients had FIGO stage III disease, 31.5% - stage II and 31.5% - stage I. On HPE, 78.57% (11/14) patients had positive nodes and two had ECS. Only 5/9 (55.5%) cases could receive PORT. Seven patients defaulted follow-up. Two developed nodal metastasis, and seven women developed recurrence. One patient with regional recurrence faced demise during RT course. In 10/19 regular follow-up patients, four are alive and disease free, five patients are on palliative chemoradiation, and one is undergoing adjuvant radiotherapy for regional recurrence. Estimated 5-year overall survival is 83.33%.

Conclusion

Tumour stage, nodal positivity and nodal ECS were poor prognostic factors. Radical surgery-extensive groin node dissection causes significant morbidity; hence, studies evaluating the role of neoadjuvant treatment are needed so as to modify current treatment practices. HPV vaccination as a preventive measure and a thorough and extensive evaluation of patients with suspicious signs in vulvar disease is needed.

Radiation therapy for vulvar cancer: consensus guidelines of the GINECOR working group of the Spanish Society of Radiation Oncology. Part 1: clinical recommendations

PURPOSE

The present consensus statement was developed by the GINECOR working group on behalf of the Spanish Society of Radiation Oncology (SEOR). Given the lack of prospective data on the management of vulvar carcinoma, this document provides an up-to-date review of radiotherapy treatment in vulvar cancer and a series of consensus-based recommendations from a group of experts.

METHODS

A two-round, online modified Delphi study was conducted to reach consensus treatment recommendations in three clinical settings: 1) adjuvant treatment, 2) locally-advanced vulvar cancer (LAVC), and 3) recurrent disease. After the first round, we comprehensively reviewed the available medical literature from peer-reviewed journals to assess and define the evidence-based treatment options. In the second round, participants were asked to indicate their level of agreement with the preliminary recommendations according to the GRADE (Grade of Recommendation, Assessment, Development, and Evaluation) criteria, as follows: strongly agree; agree; neither agree nor disagree; disagree; strongly disagree.

RESULTS

The main recommendations were as follows: 1) following surgical resection, adjuvant radiotherapy is recommended with the presence of adverse risk factors (primarily positive margins and lymph node involvement); 2) radiotherapy (with or without chemotherapy) should be considered in LAVC; and 3) in recurrent disease, radiotherapy should be individualised on a case-by-case basis. A high level of agreement over 80% was reached.

CONCLUSIONS

In the absence of robust clinical data, these final recommendations may help to select the optimal radiotherapy approach for this relatively rare cancer.

Precursors, pathways of carcinogenesis and molecular markers of vulvar squamous cell carcinoma. Literature review

The review analyzes and summarizes the results of the studies on the pathogenesis of  vulvar squamous cell carcinoma and its diagnostic features, reviews precursors and  molecular subtypes of carcinomas. Despite the relatively low incidence of this tumor, over the past few decades, there has been an upward trend in its incidence, including the incidence among young women. According to the latest World Health Organization classification of lower genital tumors from 2020, vulvar squamous cell carcinoma is divided into human papillomavirus (HPV) associated and HPV-independent. While these carcinomas are often morphologically similar, their mechanisms of carcinogenesis, precursors, and clinical outcomes are different. Just the detection of virus DNA in a tumor is not enough to establish HPV status. Meanwhile immunohistochemical detection of the expression of p16 and p53 proteins allows not only to separate two pathogenetic pathways of carcinogenesis, but also to identify its molecular subtypes. The data on the possible use of p16 and p53 expression as the disease prognosis molecular markers have been obtained. Currently, the tactics of treatment and monitoring patients does not depend on the HPV status of carcinoma; however, the results of recent studies suggest that women with HPV positive vulvar cancer have significantly higher survival rates and a lower risk of recurrence. Understanding the mechanisms of carcinogenesis and improving its diagnosis will advance the assessment of the individual risk of the progression of precancerous lesions, as well as the outcome and the occurrence of tumor recurrence. 

Can late lymphoscintigraphy be omitted in the sentinel node procedure in early-stage vulvar cancer?

INTRODUCTION

In the Netherlands, the sentinel lymph node procedure protocol consists of preoperative lymphoscintigraphy combined with intraoperative blue dye for identifying sentinel lymph nodes in early vulvar squamous cell carcinoma. This study aimed at investigating the role of early and late lymphoscintigraphy.

MATERIAL AND METHODS

From January 2015 to January 2019, early and late lymphoscintigraphies of 52 women were retrospectively analyzed. Lymphoscintigraphy was performed 30 minutes (early) and 2.5-4 hours (late) after vulvar injection of ^99m Tc-labeled nanocolloid. We calculated the concordance correlation coefficient (CCC) between number of sentinel lymph nodes detected on both images using the Lins concordance coefficient and correlated with clinicopathological data.

RESULTS

Thirty-four women had a midline tumor and 18 had a lateral tumor. Detection rates with early and late scintigraphy were 88.5% and 98.1%, respectively. Median number of detected nodes was 1.0 (0-7) and 2.0 (0-7). Good statistical correlation between number of sentinel lymph nodes detected on early and late imaging was found (CCC = 0.76) in most patients. In 18 women (35%) a mismatch occurred: a higher number of nodes was detected on late imaging. In 11 of 18 women re-injection was performed because no sentinel lymph nodes were visualized on early images. Late imaging and intraoperative detection showed a good statistical correlation (CCC = 0.61). One woman showed an isolated groin recurrence despite negative sentinel lymph nodes.

CONCLUSIONS

This study showed good statistical correlations between early and late scintigraphy in most patients. However, in 35% of women late scintigraphy detected more nodes. In case of poor visualization after the first scintigraphy, re-injection should be considered. Late scintigraphy is probably helpful in confirming successful re-injection and in showing deviating lymph flow in women with failed mapping after the first injection and successful re-injection. Because missing metastatic sentinel lymph nodes often leads to a poor prognosis, we prefer optimal correlations between imaging and intraoperative identification. Hence, late scintigraphy cannot be safely omitted.

Human amniotic membrane for myocutaneous dehiscence after a radical surgical treatment of vulvar cancer: A case report

Background

The application of the amniotic membrane could have a favourable effect on tissue repair and regeneration. We report the first case of implant of an amniotic membrane in a patient affected by myo-cutaneous dehiscence, after a radical surgical treatment for vulvar cancer.

Methods

We describe a case of a 74-years-old patient affected by vulvar cancer. After radiotherapy, the patient underwent to an anterior pelvic exenteration with uretero-ileo-cutaneostomy by Wallace, bilateral pelvic lymphadenectomy, omental biopsies, omental flap, bilateral inguinal lymphadenectomy, resection of ulcerated left inguinal lesion, reconstruction with left gracilis muscle flap and locoregional V-Y advancement flap. The patient developed a myo-cutaneous dehiscence. Two months after the surgery, following an accurate curettage of the wound and negative pressure therapy, a patch of human amniotic membrane was implanted.

Results

The surgical procedure was easy, feasible and did not require long operating room times. No intraoperative or postoperative complications occurred. The results obtained were encouraging with a marked improvement in the surgical wound.

Conclusion

the use of amniotic membranes was safely and easily performed to promote the healing of complicated surgical wounds.

Neoadjuvant chemotherapy for patients with locally advanced vulvar cancer

PURPOSE OF REVIEW

Studies on treatment options for patients with locally advanced vulvar cancer (LAVC) are scarce, and high-level evidence for a primary treatment choice is lacking. Furthermore, current treatment options are associated with extensive morbidity and high complication rates. More effective treatment options are urgently needed. This review describes current treatment possibilities, focusing on literature regarding neoadjuvant chemotherapy (NACT) followed by surgery.

RECENT FINDINGS

Although data are heterogeneous and limited, NACT followed by surgery might be an effective and well tolerated treatment alternative associated with lower morbidity compared with current treatment options, such as excenterative surgery or definitive chemoradiation.

SUMMARY

Up until now, several studies describe an overall response rate of 40-86%. Surgery turned out to be possible in 40-90% of the LAVC patients who received NACT. Prospective studies on the efficacy and safety of NACT followed by surgery with a homogeneous chemotherapy regimen are urgently awaited. NACT should, at this point, still be considered investigational.

Management of Early-Stage Vulvar Cancer

Simple Summary

Vulvar cancer is a rare gynecological malignancy that affects mainly postmenopausal women. Recently, however, an alarming increase in the rates among young women has been observed due to human papillomavirus infection. The standard treatment for vulvar cancer is surgery with or without radiotherapy as adjuvant treatment. In recent decades, sentinel lymph node biopsy has been included as part of the surgical treatment. Thus, our objective was to review and discuss the advances found in the literature about early-stage vulvar cancer. For this, we searched PubMed for publications in the English language. Relevant articles, such as the GROINS-V studies, and the GOG protocols, are presented in this review exhibiting the evolution of early-stage vulvar cancer treatment and the decrease in surgical morbidity rates.

Abstract

Vulvar cancer is a rare gynecological malignancy since it represents 4% of all cancers of the female genital tract. The most common histological type is squamous cell carcinoma (90%). This type can be classified into two clinicopathological subtypes according to the etiology. The first subtype is associated with persistent human papillomavirus infection and is usually diagnosed in younger women. The second subtype is associated with lichen sclerosus condition, and in most cases is diagnosed in postmenopausal women. Currently, an increase in first subtype cases has been observed, which raised the concern about associated mortality and treatment morbidity among young women. Vulvar cancer treatment depends on histopathology grade and staging, but surgery with or without radiotherapy as adjuvant treatment is considered the gold standard. In recent decades, sentinel lymph node biopsy has been incorporated as part of the treatment. Therefore, we sought to review and discuss the advances documented in the literature about vulvar cancer focusing on the treatment of early-stage disease. Relevant articles, such as the GROINS-V studies and the GOG protocols, are presented in this review. Additionally, we discuss key points such as the evolution of treatment from invasive surgery with high morbidity, to more conservative approaches without compromising oncologic safety; the role of sentinel lymph node mapping in the initial staging, since it reduces the complications caused by inguinofemoral lymphadenectomy; the recurrences rates, since local recurrence is common and curable, however, groin-associated, or distant recurrences have a poor prognosis; and, finally, the long-term follow-up that is essential for all patients.

Assessment of recurrence rate and risk factors of relapse in stage in IA vulvar carcinoma

OBJECTIVE

To evaluate recurrence rates and risk factors of relapse in stage IA vulvar squamous cell carcinoma (VSCC) patients.

MATERIAL AND METHODS

Population-based prospectively collected data on stage IA VSCC was retrieved through the Danish Gynecological Cancer Database (DGCD) during 2011-2017. A central pathology review was performed on tumors from women with recurrent disease.

RESULTS

62 women diagnosed and treated for stage IA VSCC were identified. Nine (14.5%) of the included cases relapsed within the observation period. The recurrences were in the vulva, groins or both in 5 (8.1%), 3 (4.8%) and 1 (1.6%) of the women, respectively. At central pathology review, including all recurrent cases (n = 9), 5 out of 21 reviewed patients were upstaged to stage IB due to depth of invasion >1 mm and two were downstaged to Carcinoma in situ. Two of the upstaged women developed an isolated groin recurrence and one an isolated vulvar relapse. After exclusion of the seven cases the overall recurrence rate decreased to 10.9% (n = 6). Among these cases (n = 55) resection margin <8 mm and tumor size were associated with cancer recurrence.

CONCLUSION

Pathological assessment of stage IA VSCC (depth of invasion ≤1 mm) may be difficult. This may result in under-staging, which impact the choice of treatment and possibly the prognosis. This suggests a need for further clarification of the FIGO measurement and may require a more radical approach when it comes to treatment and groin exploration in stage IA VSCC. Resection margins <8 mm and tumor size were associated with relapse of the disease.

Risk for Pelvic Metastasis and Role of Pelvic Lymphadenectomy in Node-Positive Vulvar Cancer-Results from the AGO-VOP.2 QS Vulva Study

Simple Summary

In node-positive vulvar squamous cell cancer, questions of when and how to perform pelvic lymphadenectomy (LAE) as well as the optimal extent of pelvic treatment in general have been surrounded by considerable controversy. In Germany, systematic pelvic LAE is currently recommended as a staging procedure in patients at risk for pelvic nodal involvement in order to prevent morbidity caused by pelvic radiotherapy (RT) in patients without histologically-confirmed pelvic involvement. However, the population at risk for pelvic metastases remains insufficiently described, resulting in the potential overtreatment of a considerable proportion of patients with groin-positive disease. This applies to the indication to perform surgical staging but also to adjuvant RT of the pelvis without previous pelvic staging. Our study aims to describe the risk for pelvic lymph node metastasis with regard to positive groin nodes and to clarify the indication criteria for pelvic treatment in node-positive vulvar cancer.

Abstract

The need for pelvic treatment in patients with node-positive vulvar cancer (VSCC) and the value of pelvic lymphadenectomy (LAE) as a staging procedure to plan adjuvant radiotherapy (RT) is controversial. In this retrospective, multicenter analysis, 306 patients with primary node-positive VSCC treated at 33 gynecologic oncology centers in Germany between 2017 and 2019 were analyzed. All patients received surgical staging of the groins; nodal status was as follows: 23.9% (73/306) pN1a, 23.5% (72/306) pN1b, 20.4% (62/306) pN2a/b, and 31.9% (97/306) pN2c/pN3. A total of 35.6% (109/306) received pelvic LAE; pelvic nodal involvement was observed in 18.5%. None of the patients with nodal status pN1a or pN1b and pelvic LAE showed pelvic nodal involvement. Taking only patients with nodal status ≥pN2a into account, the rate of pelvic involvement was 25%. In total, adjuvant RT was applied in 64.4% (197/306). Only half of the pelvic node-positive (N+) patients received adjuvant RT to the pelvis (50%, 10/20 patients); 41.9% (122/291 patients) experienced recurrent disease or died. In patients with histologically-confirmed pelvic metastases after LAE, distant recurrences were most frequently observed (7/20 recurrences). Conclusions: A relevant risk regarding pelvic nodal involvement was observed from nodal status pN2a and higher. Our data support the omission of pelvic treatment in patients with nodal status pN1a and pN1b.

Role of radiotherapy in the management of vulvar cancer: Recommendations of the French society for radiation oncology

Primary vulvar carcinomas are rare gynaecological cancers, for which surgery is the mainstay of treatment. There is however a major place for external beam radiotherapy in the situation of inoperable locally advanced tumours and/or as adjuvant therapy, when there are risk factors for locoregional relapse. We present the recommendations of the French society for radiation oncology on the indications and techniques for radiotherapy in the treatment of primary vulvar cancer.

MRI Staging in Locally Advanced Vulvar Cancer: From Anatomy to Clinico-Radiological Findings. A Multidisciplinary VulCan Team Point of View

MR imaging provides excellent spatial and contrast resolution to stage locally advanced vulvar cancer (LAVC) for tumor and nodal evaluation in order to facilitate the planning of treatment. Although there are no standard indications for how to estimate the clinical stage of International Federation of Gynecology and Obstetrics at diagnosis, MR imaging can depict the tumor and its extension to the vulvar region and adjacent organs, such as the vagina, urethra, and anus. Optimizing the MR imaging protocol and technique is fundamental for correct staging. The aim of this overview was to focus on the role of MR imaging in LAVC staging. We define vulvar anatomy and corresponding MR imaging findings, MR imaging protocol, and technique. Moreover, we describe the MR imaging findings of LAVC with example cases stage by stage. Key imaging findings based on signal intensity, diffusion restriction, and enhancement are portrayed to correctly identify and stage vulvar cancer. A structured report for LAVC staging is reported in order to give all necessary information to the clinicians and to facilitate MR imaging comprehension.

Adjuvant radiotherapy and local recurrence in vulvar cancer - a subset analysis of the AGO-CaRE-1 study

BACKGROUND

The impact of adjuvant radiotherapy (RT) to the vulva with regard to prognosis and local recurrence in patients with vulvar squamous cell cancer (VSCC) is poorly described.

PATIENTS AND METHODS

In the AGO-CaRE-1 study 1618 patients with primary VSCC FIGO stage ≥ IB, treated between 1998-2008, were documented. In this retrospective subanalysis, 360 patients were included based on the following criteria: nodal involvement (pN+), known RT treatment and known radiation fields.

RESULTS

The majority had pT1b/pT2 tumors (n=299; 83.1%). In 76.7%, R0 resection was achieved. 57/360 (15.8%) N+ patients were treated with adjuvant RT to the groins/pelvis and 146/360 (40.5%) received adjuvant RT to the vulva and groins/pelvis. 157/360 (43.6%) patients did not receive any adjuvant RT. HPV status was available in 162/360 patients (45.0%), 75/162 tumors were HPV+(46.3%), 87/162 (53.7%) HPV-. During a median follow-up of 17.2 months, recurrence at the vulva only occurred in 25.5% of patients without adjuvant RT, in 22.8% of patients with adjuvant RT to groins/pelvis and in 15.8% of patients with adjuvant RT to the vulva and groins/pelvis respectively. The risk reducing effect of local RT was independent of the resection margin status. 50% disease free survival time (50% DFST) indicated a stronger impact of adjuvant RT to the vulva in HPV+ compared to HPV- patients (50% DFST 20.7 months vs. 17.8 months).

CONCLUSION

Adjuvant RT to the vulva was associated with a lower risk for local recurrence in N+ VSCC independent of the resection margin status. This observation was more pronounced in patients with HPV+ tumors in comparison to HPV- tumors.

Cancer of the vulva: 2021 update

Vulvar cancer is an uncommon gynecological malignancy primarily affecting postmenopausal women. There is no specific screening and the most effective strategy to reduce vulvar cancer incidence is the opportune treatment of predisposing and preneoplastic lesions associated with its development. While vulvar cancer may be asymptomatic, most women present with vulvar pruritus or pain, or have noticed a lump or ulcer. Therefore, any suspicious vulvar lesion should be biopsied to exclude invasion. Once established, the most common subtype is squamous cell carcinoma. Treatment of vulvar cancer depends primarily on histology and surgical staging. Treatment is predominantly surgical, particularly for squamous cell carcinoma, although concurrent chemoradiation is an effective alternative, particularly for advanced tumors. Management should be individualized and carried out by a multidisciplinary team in a cancer center experienced in the treatment of these tumors.

A useful update for trainees and specialists regarding the diagnosis, staging, treatment, and some controversies in the management of vulvar neoplasms.

Vulvar cancer in Botswana in women with and without HIV infection: patterns of treatment and survival outcomes

OBJECTIVES

Vulvar cancer is a rare gynecological malignancy. However, the incidence of human papillomavirus (HPV)-associated vulvar disease is increasing, particularly in low- and middle-income countries. HIV infection is associated with an increased risk of HPV-associated vulvar cancer. We evaluated treatment patterns and survival outcomes in a cohort of vulvar cancer patients in Botswana. The primary objective of this study was to determine overall survival and the impact of treatment modality, stage, and HIV status on overall survival.

METHODS

Women with vulvar cancer who presented to oncology care in Botswana from January 2015 through August 2019 were prospectively enrolled in this observational cohort study. Demographics, clinical characteristics, treatment, and survival data were collected. Factors associated with survival including age, HIV status, stage, and treatment were evaluated.

RESULTS

Our cohort included 120 women with vulvar cancer. Median age was 42 (IQR 38-47) years. The majority of patients were living with HIV (89%, n=107) that was well-controlled on antiretroviral treatment. Among women with HIV, 54.2% (n=58) were early stage (FIGO stage I/II). In those without HIV, 46.2% (n=6) were early stage (stage I/II). Of the 95 (79%) patients who received treatment, 20.8% (n=25) received surgery, 67.5% (n=81) received radiation therapy, and 24.2% (n=29) received chemotherapy, either alone or in combination. Median follow-up time of all patients was 24.7 (IQR 14.2-39.1) months and 2- year overall survival for all patients was 74%. Multivariate analysis demonstrated improved survival for those who received surgery (HR 0.26; 95% CI 0.08 to 0.86) and poor survival was associated with advanced stage (HR 2.56; 95% CI 1.30 to 5.02). Survival was not associated with HIV status.

CONCLUSIONS

The majority of women with vulvar cancer in Botswana are young and living with HIV infection. Just under half of patients present with advanced stage, which was associated with worse survival. Improved survival was seen for those who received surgery.

Perineural Invasion Correlates With Common Pathological Variables and Clinical Outcomes of Patients With Squamous Cell Carcinoma of the Vulva Treated With Primary Radical Surgery and Inguinal-femoral Lymphadenectomy

BACKGROUND/AIM

The aims of the study were: i) to assess the incidence of perineural invasion (PNI) in squamous cell carcinoma of the vulva and ii) to correlate PNI with common pathological prognostic variables and clinical outcome of patients.

PATIENTS AND METHODS

The hospital records of 64 patients with vulvar squamous cell carcinoma who underwent primary radical surgery were reviewed.

RESULTS

PNI was significantly related to stage (p=0.038), size (p=0.038), lymph-vascular space involvement (p=0.013) and nodal status (p=0.038), but not to patient age, tumor grade and stromal invasion. Five-year disease-free survival was 30.0% in patients with PNI and 53.1% in those without PNI (p=0.018), and the corresponding 5-year overall survival was 50.0% and 77.1% (p=0.031), respectively.

CONCLUSION

PNI was associated with common pathological prognostic variables and with a poorer clinical outcome in patients with vulvar squamous cell carcinoma.

Role of Pelvic Lymph Node Resection in Vulvar Squamous Cell Cancer: A Subset Analysis of the AGO-CaRE-1 Study

Background

As the population at risk for pelvic nodal involvement remains poorly described, the role of pelvic lymphadenectomy (LAE) in vulvar squamous cell cancer (VSCC) has been a matter of discussion for decades.

Methods

In the AGO-CaRE-1 study, 1618 patients with International Federation of Gynecology and Obstetrics (FIGO) stage IB or higher primary VSCC treated at 29 centers in Germany between 1998 and 2008 were documented. In this analysis, only patients with pelvic LAE (n = 70) were analyzed with regard to prognosis and correlation between inguinal and pelvic lymph node involvement.

Results

The majority of patients had T1b/T2 tumors (n = 47; 67.1%), with a median diameter of 40 mm (2–240 mm); 54/70 patients (77.1%) who received pelvic LAE had positive groin nodes. For 42 of these 54 patients, the number of affected groin nodes had been documented as a median of 3; 14/42 (33.3%) of these patients had histologically confirmed pelvic nodal metastases (median number of affected pelvic nodes 3 [1–12]). In these 14 patients, the median number of affected groin nodes was 7 (1–30), with a groin metastases median maximum diameter of 42.5 mm (12–50). Receiver operating characteristic analysis showed an area under the curve of 0.85, with 83.3% sensitivity and 92.6% specificity for the prediction of pelvic involvement in cases of six or more positive groin nodes. No cases of pelvic nodal involvement without groin metastases were observed. Prognosis in cases of pelvic metastasis was poor, with a median progression-free survival of only 12.5 months.

Conclusion

For the majority of node-positive patients with VSCC, pelvic nodal staging appears unnecessary since a relevant risk for pelvic nodal involvement only seems to be present in highly node-positive disease.

Locally advanced squamous cell carcinoma of the vulva: A challenging question for gynecologic oncologists

Squamous cell carcinoma of the vulva is a rare female malignancy, with an incidence increasing with age. Unfortunately, one third of the patients are diagnosed with locally advanced disease, which constitutes a clinical challenge for the clinicians who treat these patients. The main challenges are represented by: 1. The primary site of the disease, which can be proximal to anatomical structures like the anal canal posteriorly, or the urethra and the bladder anteriorly, that in some circumstances cannot be spared without a bowel and/or urinary stoma; 2. The locoregional nodes that can be involved by the tumor, and they can be bulky, fixed or ulcerated; 3. The clinical condition of the patient, who may carry several comorbidities. Treatment modalities include radiation with or without chemotherapy, and surgery. In order to preserve the bowel and the urinary function without a permanent stoma, a personalized management with a multimodality approach is warranted. In this systematic review, we first clarify the different definitions of "locally advanced vulvar carcinoma". Secondly, we evaluated the different treatment modalities described in the literature, and the impact of the different treatment strategies on prognosis and on preservation of bowel/urinary function. Finally, we offer a possible algorithm that may help the clinicians in treating patients with these uncommon and challenging situations with a multidisciplinary approach.

Role of human papillomavirus infection in the etiology of vulvar cancer in Italian women

Background

Vulvar squamous cell carcinoma (VSCC) is a rare malignancy of the female genital tract. We aimed to determine the mucosal high-risk human papillomavirus (HPV)-attributable fraction of VSCCs from Italian women using multiple markers of viral infections.

Methods

VSCCs and 8 metastatic lymph node samples from 107 Italian women were analyzed by a highly type-specific multiplex genotyping assay for the presence of DNA from 119 different HPVs. Tissues were further analyzed for HPV RNA and for upregulation of the cellular protein p16^INK4a.

Results

The rate of mucosal HPV-related tumors defined by viral DNA and RNA positivity was low (7.8%). HPV16 was the most prevalent, followed by 53, 56, and 58. Only five (4.9%) p16^INK4a-positive tumors were also positive for both viral DNA and RNA. One (14.3%) metastatic lymph node sample was positive for all three markers. DNA of cutaneous HPVs was detected in only two VSCCs, i.e. genus beta types 5 and 110.

Conclusion

A small proportion of Italian VSCCs is putatively HPV-related, i.e. positive for both viral DNA and RNA of the same type, thus reinforcing the importance of HPV vaccination. Moreover, this study suggests that a direct role of HPV from genus beta and gamma in vulvar carcinogenesis is unlikely.

State of the art in vulvar cancer imaging

Vulvar carcinoma is an uncommon tumor that predominantly affects postmenopausal women. Currently, there is no screening procedure for vulvar carcinoma; in most cases, it is diagnosed only when symptoms appear. The most widely used staging system is that developed by the International Federation of Gynecology and Obstetrics. Lymph node status is the most important prognostic factor. We searched the PubMed/Medline database to identify relevant English-language articles on vulvar cancer, with a special focus on its imaging evaluation. Magnetic resonance imaging is useful for local and nodal staging, as well as facilitating the planning of surgical interventions and radiotherapy. Computed tomography or positron-emission tomography/computed tomography can play an important role in nodal and distant disease assessment, whereas ultrasound is often used for image-guided biopsies. Imaging is pivotal for staging and treatment planning in vulvar carcinoma.

[Cancer of the vulva: Diagnostic stages, treatment and survival in a country with limited resources (Burkina Faso)]

INTRODUCTION

Vulvar cancer is rare and belatedly diagnosed in Africa. We describe its diagnostic stages, therapeutic and evolution features in a country with limited resources.

METHODOLOGY

Forty-seven cases of vulvar cancer diagnosed between 2013 and 2018 in Burkina Faso, were analyzed retrospectively. The diagnostic stages, therapeutic and evolution terms were considered. Survival was calculated through the Kaplan Meier Method and compared using the Logrank technique.

RESULTS

Stages IA and IB accounted for 10.6%. Radiotherapy was not available and chemotherapy was done in 9 cases. Full vulvectomy with bilateral inguino-femoral dissection was performed in 11 cases. Average survival was 41 months with a median of 52 months. The difference in survival according to the diagnostic stages were highly significant statistically (P=0.000).

DISCUSSION

Cancer of the vulva is rare and raises major therapeutic difficulties in countries with limited resources. Surgery is the only affordable weapon. Evolution would be better if radiochemotherapy was possible.

CONCLUSION

Radiochemotherapy cannot be done due to the lack of a radiotherapy unit and the high cost of cytotoxics. Surgery is largely palliative and/or mutilating. Survival is modest. An early diagnosis could help promote conserving treatments.

Surgical Management of Carcinoma Vulva-Case Series and Review of Literature

The objective of this study was to study the risk factors, management protocols, and the outcome of vulvar cancer cases over a period of 2 years in a tertiary care hospital. This is a case series of early-stage vulvar cancer in the Department of Surgical Oncology in BL Kapur Superspeciality Hospital from Jan 2016 to date. Five patients with histologically proven diagnosis of early-stage vulvar cancer were included. The mean age for the diagnosis of vulvar cancer was 58 years and the peak incidence was seen in postmenopausal age group. All of the cases were squamous cell carcinomas in stage IB except one which was a basisquamous variant. All cases were treated primarily with surgery and vulvar flap reconstruction. Adjuvant therapy was not given in any case. Cases were followed from 6 months to date, and no recurrence noted. The limitations of the study were rarity of disease and less number of cases. As all the cases in our study were in early stage of disease (stages I and II), surgical treatment in the form of modified radical vulvectomy with B/L inguinofemoral lymph node dissection and oncoplastic procedure was the treatment modality chosen for all the patients.

Prognostic significance of perineural invasion in vulvar squamous cell carcinoma

Background: Perineural invasion (PNI) is closely associated with poor survival in several types of malignant tumours, but whether this is true in vulvar squamous cell carcinoma (VSCC) is unclear. The aims of this study were to determine the prognostic significance of PNI in patients with VSCC. Patients and methods: We retrospectively analysed clinico-pathological data on 105 patients with VSCC (stages IB-IV) treated surgically at our medical center between 2005 and 2015. Results: PNI was detected in 30 (28.6%) patients, and it was significantly associated with well-known clinical risk factors: large tumour size, depth of invasion, lymphatic vascular space invasion (LVSI), and intra- or extra-nodal spread. Significantly greater proportions of patients with PNI received adjuvant therapy after surgery (P=0.001) or showed local recurrence (P=0.002). Multivariable analysis indicated that risk factors for disease-free survival were tumour size (HR 3.02, 95%CI 1.75-7.75), LVSI (HR 4.82, 95%CI 1.36-17.07), depth of invasion (HR 3.11, 95%CI 1.50-6.44), lymph node metastasis (HR 3.15, 95%CI 1.14-8.96) and positive or close surgical margins (HR 4.86, 95%CI 1.67-14.19). The latter three variables were also risk factors for overall survival. PNI was associated with significantly shorter disease-free survival (DFS) (P=0.020) and overall survival (OS) (P=0.017) based on the log-rank test. Among patients who received adjuvant treatment, Kaplan-Meier curves indicated no significant differences between PNI-positive or -negative subgroups in disease-free survival (P=0.085) or overall survival (P=0.061). Based on multivariable analysis of all patients, PNI was not a significant risk factor for either type of survival . Conclusion: PNI in VSCC is associated with significantly shorter disease-free and overall survival, though it appears to be a weak independent predictor of worse prognosis. Combining PNI with other risk factors may be useful for predicting whether postoperative adjuvant therapy will be needed.

Time series analysis of TP53 gene mutations in recurrent HPV-negative vulvar squamous cell carcinoma

The impact of TP53 gene mutations in recurrent HPV-negative vulvar squamous cell carcinomas is unclear. TP53 gene mutations were analyzed in archival tissues of 24 primary squamous cell carcinoma and local vulvar recurrences arising in chronic inflammatory dermatoses by analyzing the full coding sequence of the TP53 gene and correlated with disease-free survival. After resection of the primary squamous cell carcinoma with clear margins 19/24 patients had one and 5/24 had multiple recurrences. The first recurrence occurred after median of 46 months (range 12-180 months). In all, 17/24 (71%) primary squamous cell carcinomas had TP53 gene mutations and recurred after median disease-free intervals of 33 months (range 12-180). 14/17 (88%) recurrent squamous cell carcinomas carried again TP53 gene mutations, five with identical and nine with different, more complex TP53 gene mutations. 7/24 (29%) patients with a p53 wild-type primary SCC had the first recurrence after median 65 months (range 14-144) featuring p53 wild-type in 3/7 (43%) and TP53 gene mutations in 4/7 (57%) recurrent squamous cell carcinomas. Disease-free intervals of > 5 years (60-180 months) were observed in 10/24 patients total (42%; equally divided among p53 wild-type (5/7; 71%) and TP53 gene mutated (5/17; 29%) squamous cell carcinomas). In summary, squamous cell carcinomas recurred in the residual vulvar dermatosis independent of TP53 gene mutational status of the primary squamous cell carcinoma. The majority of TP53 gene mutated cancers recurred with different TP53 gene mutations, some of them more complex, and patients with p53 wild type developed TP53 gene mutations in the recurrent squamous cell carcinomas, possibly indicating increased genetic instability in longstanding chronic inflammatory dermatoses. A change of TP53 gene mutational status after > 5 years suggests de novo oncogenic events/carcinogenesis. Longer disease-free intervals in patients with p53 wild-type primary squamous cell carcinoma suggest that TP53 gene mutational status may serve as a prognostic marker for disease-free intervals.

Cancer of the vulva

Vulvar cancer is an uncommon gynecological malignancy primarily affecting postmenopausal women. There is no specific screening and the most effective strategy to reduce vulvar cancer incidence is the opportune treatment of predisposing and preneoplastic lesions associated with its development. While vulvar cancer may be asymptomatic, most women present with vulvar pruritus or pain, or have noticed a lump or ulcer. Therefore, any suspicious vulvar lesion should be biopsied to exclude invasion. Once established, the most common subtype is squamous cell carcinoma. Treatment of vulvar cancer depends primarily on histology and surgical staging. Treatment is predominantly surgical, particularly for squamous cell carcinoma, although concurrent chemoradiation is an effective alternative, particularly for advanced tumors. Management should be individualized, and carried out by a multidisciplinary team in a cancer center experienced in the treatment of these tumors.

FDG-PET Assessment of Other Gynecologic Cancers

PET and PET/computed tomography play a role in the staging, monitoring of response to therapy, and surveillance for cervical and ovarian cancers. Currently, it is also an integral part of the assessment of patients with endometrial cancer and other gynecologic malignancies, such as vaginal and vulvar cancers and uterine sarcomas. In this article, we discuss in detail and highlight the potential role of PET and PET/computed tomography in evaluating these gynecologic malignancies using illustrative cases with relevant imaging findings.

Improving Knowledge and Awareness of Human Papillomavirus-Associated Gynecologic Cancers: Results from the National Comprehensive Cancer Control Program/Inside Knowledge Collaboration

BACKGROUND

Over 16,000 women are diagnosed with a human papillomavirus (HPV)-associated gynecologic cancer every year. Because most of these cancers are preventable, correct and appropriate information about the HPV vaccine and cervical cancer screening can help reduce incidence.

MATERIALS AND METHODS

The Centers for Disease Control and Prevention created Inside Knowledge: Get the Facts About Gynecologic Cancer campaign materials, which were used by seven National Comprehensive Cancer Control Program recipients in tailored educational sessions on gynecologic cancer with women and healthcare providers in the community setting. Session participants completed presession and postsession questionnaires. Differences in knowledge and intentions were assessed using chi-square tests for women in the general public, obstetricians/gynecologists (OB/GYNs), primary care physicians (PCPs), and other healthcare providers.

RESULTS

Women's knowledge improved significantly presession to postsession that HPV causes vaginal (39%-65%, p < 0.001) and vulvar cancers (26%-60%, p < 0.001), but postsession few women correctly identified all HPV-associated gynecologic cancers (15%). From presession to postsession, more women were able to correctly identify recommended age groups for whom the HPV vaccine is recommended (15%-30%, p < 0.001), and that the Pap test only screens for cervical cancer (58%-73%, p < 0.001). Among providers, OB/GYNs had more baseline knowledge of HPV-associated gynecologic cancers than other providers. Postsession, PCPs and other providers increased their knowledge of HPV vaccine recommended age groups (33%-71% and 23%-61%, respectively), and the 3-year recommended screening interval for the Pap test (73%-91% and 63%-85%, respectively). HPV vaccine knowledge did not show significant improvement among OB/GYNs postsessions.

CONCLUSIONS

Women and healthcare providers who attended the Inside Knowledge sessions significantly improved their knowledge of HPV-associated gynecologic cancers. Additional educational activities during the sessions that support distinguishing between HPV-associated versus other gynecologic cancers and clarify HPV vaccine recommendations may help with further increases in knowledge.

Vulvar cancer in Germany: increase in incidence and change in tumour biological characteristics from 1974 to 2013

BACKGROUND

The incidence of vulvar cancer in Germany is increasing. Moreover, gynaecological oncologists reported observing increasing numbers of women presenting with small tumours. The aim of the present study is to validate this observation on a population level and to extend available incidence data.

MATERIAL AND METHODS

Data from the population-based Saarland Cancer Registry were used and included 1136 women diagnosed with invasive vulvar cancer (ICD-9 codes: 181.1-181.4, ICD-10 code: C51) between 1974 and 2013. Multiple imputation methodology was used to overcome loss of precision and potential bias resulting from incomplete data. Incidence trends were investigated with regard to age at diagnosis, tumour size and clinical stage, morphology and histopathologic grade.

RESULTS

The age-standardised incidence rate of vulvar cancer increased from 1.6 cases per 100,000 women per year in 1974-78 to 7.9 in 2009-13, representing an increase across all age groups. Since 1989-93, an almost exclusive increase in the incidence of small tumours ≤2 cm in the greatest dimension from 1.2 to 6.6 and of squamous cell carcinomas from 1.7 to 7.1 was observed, whereas the number of larger tumours and other invasive cancers remained rather constant. Patients aged ≥75 years generally suffered from more advanced tumours at the time of diagnosis.

CONCLUSIONS

An increase in vulvar cancer incidence of a size as observed in this study has not been reported thus far for any other European region. Furthermore, the analyses confirmed the observation of increasing numbers of women presenting with small tumours. The results of the age-specific analyses point to both human papillomavirus infection and non-infectious factors as explanations for the observed increase in squamous cell carcinomas.

Potential delay in the diagnosis of vulvar cancer and associated risk factors in women treated in German gynecological practices

The goal of this study was to estimate a potential delay in the diagnosis of vulvar cancer and identify associated risk factors in women treated in gynecological practices in Germany. The current study sample included 1,652 women from 218 gynecological practices who received an initial diagnosis of vulvar cancer (ICD 10: C51) between January 2000 and December 2015 (index date). After applying several exclusion criteria, 505 non-cancer controls were matched (1:1) to 505 vulvar cancer cases based on age, health insurance status, and index date. The primary outcome was the delay in vulvar cancer diagnosis in women who had received an initial diagnosis of diseases of Bartholin's gland, inflammation of vagina and vulva, or other specified noninflammatory disorders of vulva, including atrophy, hypertrophy, and cyst. A logistic regression model was used to estimate the association between vulvar cancer and pre-defined diagnoses. The mean age was 60.8 years (SD = 15.6 years), and 4.8% of women had private health insurance coverage. Inflammation of vagina and vulva was diagnosed 328 days (SD = 95 days) prior to the detection of vulvar cancer. This delay was 186 days (SD = 196 days) in patients affected by diseases of Bartholin’s gland and 300 days (SD = 116 days) in those with other specified noninflammatory disorders of vulva including atrophy, hypertrophy, and cyst. The risk of vulvar cancer was positively associated with inflammation of vagina and vulva (OR = 2.28) and other specified noninflammatory disorders of vulva (OR = 5.39). The mean potential delay of vulvar cancer diagnosis ranged from 186 to 328 days.

18F-FDG PET/CT in preoperative staging of vulvar cancer patients: is it really effective?

The aim of this study was to assess the role of 18F-FDG PET/CT in preoperative staging of vulvar cancer patients.29 pts (69 years, range 51-88) with vulvar cancer (clinical apparent stage I-II), underwent preoperative FDG-PET/CT scan followed by radical vulvectomy and bilateral (or monolateral in case of tumor >2 cm from midline) inguinal lymphadenectomy ± sentinel node biopsy. PET/CT images were analyzed in consensus and correlated to histological findings according to a pt-based and a groin-based analyses. SUVmax of the nodal uptake of each inguinal area (if present) was calculated and correlated to histological findings. The presence of distant metastases was also considered and confirmed.PET/CT analysis in consensus resulted negative at the inguinal LN level in 17 pts (10 true negative, 7 false negative) and positive in 12 pts (7 true positive, 5 false positive). Incidence of LN metastases resulted 48%. On pt-based analysis, sensitivity, specificity, accuracy, and negative and positive predictive value of PET/CT in detecting LN metastases were 50%, 67%, 59%, 59%, and 58%, respectively. On a groin-based analysis, considering overall 50 LN-sites, sensitivity, specificity, accuracy, and negative and positive predictive value of PET/CT were 53%, 85%, 73%, 67%, and 76%, respectively. The mean value of SUVmax was 6.1 (range 0.7-16.2) for metastatic nodes, whereas 1.6 (range 0.7 - 5.4) for negative lymph-nodes (P = .007). PET/CT detected pelvic (n = 1) and both pelvic/paraortic (n = 1) nodal metastases.In clinical early stage vulvar cancer FDG PET/CT showed low sensitivity and moderate specificity for N-staging; therefore, it is not an accurate tool for the nodal status assessment. PET/CT may not be cost-effective in detecting the rare event of distant metastases, but further studies are needed.

Vulva cancer in Ghana - Review of a hospital based data

•Seventy- 5% of vulvar cancer cases present with advance disease.•Definitive radiotherapy/chemoradiation is the main stay of treatment.•One third of patients default treatment.•Five year survival following radiotherapy was 36.7%.

Role of tumour-free margin distance for loco-regional control in vulvar cancer-a subset analysis of the Arbeitsgemeinschaft Gynäkologische Onkologie CaRE-1 multicenter study

AIM OF THE STUDY

A tumour-free pathological resection margin of ≥8 mm is considered state-of-the-art. Available evidence is based on heterogeneous cohorts. This study was designed to clarify the relevance of the resection margin for loco-regional control in vulvar cancer.

METHODS

AGO-CaRE-1 is a large retrospective study. Patients (n = 1618) with vulvar cancer ≥ FIGO stage IB treated at 29 German gynecologic-cancer-centres 1998-2008 were included. This subgroup analysis focuses on solely surgically treated node-negative patients with complete tumour resection (n = 289).

RESULTS

Of the 289 analysed patients, 141 (48.8%) had pT1b, 140 (48.4%) pT2 and 8 (2.8%) pT3 tumours. One hundred twenty-five (43.3%) underwent complete vulvectomy, 127 (43.9%) partial vulvectomy and 37 (12.8%) radical local excision. The median minimal resection margin was 5 mm (1 mm-33 mm); all patients received groin staging, in 86.5% with full dissection. Median follow-up was 35.1 months. 46 (15.9%) patients developed recurrence, thereof 34 (11.8%) at the vulva, after a median of 18.3 months. Vulvar recurrence rates were 12.6% in patients with a margin <8 mm and 10.2% in patients with a margin ≥8 mm. When analysed as a continuous variable, the margin distance had no statistically significant impact on local recurrence (HR per mm increase: 0.930, 95% CI: 0.849-1.020; p = 0.125). Multivariate analyses did also not reveal a significant association between the margin and local recurrence neither when analysed as continuous variable nor categorically based on the 8 mm cutoff. Results were consistent when looking at disease-free-survival and time-to-recurrence at any site (HR per mm increase: 0.949, 95% CI: 0.864-1.041; p = 0.267).

CONCLUSIONS

The need for a minimal margin of 8 mm could not be confirmed in the large and homogeneous node-negative cohort of the AGO-CaRE database.

Cancer of the vulva in Burkina Faso: a hospital-based case series

BACKGROUND

Vulvar cancer is a rare gynaecological cancer. In Burkina Faso, the diagnosis of vulvar cancers is delayed and the prognosis is poor. However, no specific study on vulvar cancers has been conducted at the moment. This work aimed to study the characteristics of these cancers.

METHODS

This is a prospective study on histologically confirmed primary cancers of the vulva diagnosed between 1st January 2013 and 30th June 2015. The demographic and clinical aspects were studied at the Yalgado Ouedraogo University Hospital of Ouagadougou (CHU-YO).

RESULTS

We noticed 21 cases of vulvar cancers within 30 months, ranking it as the 4th most common gynaecological cancer. The average age of the patients was 55 years (standard deviation +/- 6.3) and the median age was 57 years. Scars resulting from female circumcision, menopause (n = 20) and HIV infection were noticed in 19 cases and 6 cases respectively. The average time from first symptoms to first consultation was 29 months. Pain and ulceration were the main reasons for consultation. The clinical picture was chiefly an ulcero-granulating tumour. There was squamous cell carcinoma in 20 cases and basal carcinoma in 1 case. Fifteen patients were at stage III or IV, where of three patients had metastatic disease. We noticed vitiligo in 9 vulvar cancer cases.

CONCLUSION

The cancer of the vulva is rare. Women are of menopausal age, are mostly circumcised and HIV-infection is common. A majority of patients sought consultation at advanced stage of disease, and diagnosis was belatedly made. Pain and ulceration were the main reasons for consultation. The sensitization of the population, education for self- examination would allow earlier diagnosis.

The prognostic role of FIGO stage in patients with vulvar cancer: a systematic review and meta-analysis

OBJECTIVE

To perform a meta-analysis examining the survival of patients with vulvar cancer based on the 2009 International Federation of Gynecology and Obstetrics (FIGO) staging system.

METHODS

Medline, PubMed, and Cochrane databases were searched until 20 March 2015 for prospective or retrospective studies using the terms vulvar cancer, prognostic/prognosis, survival, recurrence, lymph nodes (LNs), inguinal lymphadenectomy/excision, and staging. The primary outcome was 5 year overall survival (OS), and secondary outcomes were 5 year disease-free survival (DFS) and progression-free survival (PFS).

RESULTS

Fourteen retrospective studies were included. The 5 year OS rate decreased with increasing 2009 FIGO stage and number of LN metastasis. FIGO stage I, II, III, and IV patients had 5 year OS rates of 84.0%, 74.6%, 47.8%, and 9.4%, respectively. Pooled estimates showed that the 5 year OS was 84.5% for patients without LN metastasis, and for patients with ≥3 LN metastases the 5 year OS rate was 30.1%. Similarly, the overall 5 year DFS and PFS decreased with the increasing number of LN metastases. The 5 year DFS rate was 87.2% for patients with no LN metastasis and for patients with ≥3 LN metastases was 35.4%. The 5 year PFS rate was 86.6% for patients with no LN metastasis and for patients with ≥3 LN metastases was 27.6%.

LIMITATIONS

All studies were retrospective studies. DFS and PFS rates in patients with different 2009 FIGO stages and with different mean tumor sizes were not examined due to a limited number of reports.

CONCLUSIONS

More advanced 2009 FIGO stage and greater number of LN metastases are associated with worse outcomes in patients with vulvar cancer.