Ovarian cancer initially presenting with isolated ipsilateral superficial inguinal lymph node metastasis: a case study and review of the literature

Occult ovarian high-grade serous carcinoma presenting as isolated inguinal lymph node metastasis: A case report and literature review

Superficial inguinal lymph node (SILN) metastasis is rare in ovarian cancer, particularly as an isolated presentation without peritoneal dissemination. Here we report a case of solitary SILN metastasis in a patient with high-grade serous carcinoma of ovarian cancer and review previously reported cases from literature. A 58-year-old woman presented with isolated right groin swelling (approximately 4 cm), excisional biopsy suggested ovarian origin but comprehensive imaging and laparoscopy failed to identify a primary intra-abdominal tumor, and postoperative pathology confirmed no evidence of ovarian involvement. Following multidisciplinary consultation, the patient received six cycles of paclitaxel (175 mg/m²) plus carboplatin (AUC-5) chemotherapy (21-day intervals). Remarkably, five years post-treatment, she remains disease-free, highlighting the potential for favorable outcomes even in rare metastatic presentations. This case demonstrates that ovarian cancer is not a disease confined to the intra-peritoneal cavity; SILN metastasis might occur in rare cases possibly via lymphatic and/or hematogenous spread route under specific circumstances. Further investigations related to risk factors and metastatic patterns are warranted to explore the mechanisms and clinical implications of isolated SILN metastasis in ovarian cancer.

Fallopian tube cancer with inguinal lymph node metastasis as the first symptom: A case study and review of the literature

INTRODUCTION AND IMPORTANCE

Fallopian tube cancer that is characterized only by inguinal lymph node metastasis without intra-abdominal widespread is rare. Here we report a patient with primary Fallopian tube cancer with bilateral inguinal metastases as the first symptom.

CASE PRESENTATION

A 68-year-old patient with primary Fallopian tube cancer, with painless bilateral inguinal enlargement (7 × 6 cm on the right side, 3 × 2 cm on the left side) as the only manifestation, was confirmed by preoperative biopsy as metastatic high-grade serous denocarcinoma, consider the adnexal or peritoneal source. Pelvic MRI, abdominal CT and PET-CT showed irregular signal foci can be seen in the right adnexal area, with a maximum cross-section of about 7.5 × 7.0 × 4.0 cm, considering malignancy, ovarian cancer may be possible; bilateral pelvic wall, bilateral inguinal, right iliac vessels with hypermetabolic lymph nodes. Serum CA125 level was markedly elevated at 922.40 U/ml and HE4 at 394.50 pmol/L. No abnormality was found in gastrointestinal endoscopy. At exploratory laparotomy, the tumor was confined to the right rear of the uterus, and a solid tumor with a size of about 10 × 6 × 6 cm was seen. The surface was smooth and closely related to the uterus. There was almost no tumor spread in the pelvic abdominal cavity, but there was 50 ml of pale blood-colored peritoneal fluid. The right ovarian capsule was intact. Cytoreductive surgery was performed, postoperative pathology confirmed adenocarcinoma of the right fallopian tube, and the patient received six cycles of paclitaxel plus cisplatin combination chemotherapy were administered, with three 3-weeks intervals between cycles. And subsequent the patient participated in a clinical trial. The work has been reported in line with the SCARE criteria.

CLINICAL DISCUSSION

Literature review indicates that inguinal lymph node as the first manifestation of fallopian tube cancer is not usual, and with no widespread lymphadenopathies and abdominopelvic cavity are even rarer. This case shows that rare cases with only inguinal lymph node metastasis may occur through the underlying lymphatic and/or hematogenous routes.

CONCLUSION

The diagnosis of tubal cancer is sometimes complicated and delayed. For elderly women without nonspecific symptoms, especially those with obvious masses, detailed examinations, and imaging studies should be carried out in time. The treatment of tubal cancer is multi-modal. Due to the high risk of recurrence of fallopian tube cancer, the possibility of metastasis after the initial diagnosis is large, so it is very important to receive close and regular follow-up for patients with fallopian tube cancer after treatment. We suggest that more tumor centers study the possible mechanisms, metastasis patterns, biological characteristics, etc. of such patients, and at the same time efforts should be made to early differential diagnosis, and ultimately prolong the survival time of such patients.

Neglected Anatomical Areas in Ovarian Cancer: Significance for Optimal Debulking Surgery

Ovarian cancer (OC), the most lethal gynecological malignancy, usually presents in advanced stages. Characterized by peritoneal and lymphatic dissemination, OC necessitates a complex surgical approach usually involving the upper abdomen with the aim of achieving optimal cytoreduction without visible macroscopic disease (R0). Failures in optimal cytoreduction, essential for prognosis, often stem from overlooking anatomical neglected sites that harbor residual tumor. Concealed OC metastases may be found in anatomical locations such as the omental bursa; Morison's pouch; the base of the round ligament and hepatic bridge; the splenic hilum; and suprarenal, retrocrural, cardiophrenic and inguinal lymph nodes. Hence, mastery of anatomy is crucial, given the necessity for maneuvers like liver mobilization, diaphragmatic peritonectomy and splenectomy, as well as dissection of suprarenal, celiac, and cardiophrenic lymph nodes in most cases. This article provides a meticulous anatomical description of neglected anatomical areas during OC surgery and describes surgical steps essential for the dissection of these "neglected" areas. This knowledge should equip clinicians with the tools needed for safe and complete cytoreduction in OC patients.

Inguinal Lymph Node Metastasis as Sole Manifestation of Ovarian / Fallopian Tube Cancer: a Review of the Literature

Background: Ovarian/fallopian tube cancer is the deadliest gynecological malignancy. Most cases are diagnosed at an advanced stage, typically after the cancer has spread to the peritoneal cavity, or via lymphatic drainage. The presence of distant lymph node metastasis in the inguinal region is a rare manifestation of lymphatic metastasis. Since the 2014 FIGO staging revision, ovarian cancer patients with inguinal metastasis are classified as stage IVB. However, the clinical significance of such an upstaging remains under investigation. Materials and Methods: Both Scopus and PubMed / MEDLINE databases were utilized, by inputting the following combination of keywords: (Ovarian cancer OR Fallopian tube cancer) AND (Inguinal lymph node AND Metastasis) on June 31st, 2023. The time of publication and text availability were not considered when searching the databases and all relevant articles in English were initially accepted. Results: Twelve patients from equal number of case reports were included in our review. Mean age of diagnosis was 56,5 years old, with 3 out of 12 women to be premenopausal at the time of diagnosis. Regarding the histologic type, 67% (8 out of 12) of the cases were serous adenocarcinoma and 4 patients (33%) were diagnosed with fallopian tube malignancy. All patients, except one, were treated with primary cytoreductive surgery. In all patients optimal cytoreductive surgery was achieved. All patients, except one, received adjuvant chemotherapy. Regarding the disease-free survival, mean DFS is calculated approximately at 2 years (23,1 months). Conclusion: Inguinal lymph node metastases from ovarian / fallopian tube malignancy as initial site of metastasis is extremely rare. However, patients with inguinal masses should be investigated for ovarian / fallopian malignancy. Further investigation ought to be conducted to enlighten the pathway and the oncological significance of inguinal lymph node metastasis in ovarian cancer patients.

Extra-abdominal Lymph Node Metastases as the First Presentation in Ovarian and Fallopian Tube Carcinomas

Revision of ovarian and fallopian tube cancer presentation as extra-abdominal lymph nodes to understand the diagnostic challenges and prognostic features of these situations. Literature review in PubMed and Cochrane databases using the terms "ovarian cancer," "fallopian tube cancer," "extrapelvic lymph nodes," extra-abdominal lymph nodes," "distant lymph nodes," "initial presentation," "metastases," and "unusual presentation of ovarian cancer/unusual presentation of fallopian tube cancer" isolated and in conjunction. Articles in English were analyzed regarding revision's purpose, inclusion, and exclusion criteria and 65 were included in the final document. Statistical data was obtained with Microsoft Excel software analysis. Distant manifestations of ovarian cancer may occur through the lymphatic system and, less frequently, through hematogenous spread. These forms of spread may exist with almost no symptoms related to the primary cancer location and can justify distant disease at the initial presentation. Extra-abdominal lymph node involvement poses a clinical challenge for oncologists and oncologic gynecologists because it may occur with no or mild symptoms, and even in situations where no macroscopic disease is seen in the pelvic cavity. Histology and immunohistochemistry analyses together with a high level of suspicion are paramount to help in the diagnostic workup decisions and in finding a correct diagnosis when an extra-abdominal lymph node is the first manifested sign. Given its rarity and scarcity of information dispersed in a few case reports and small case series, further investigation is needed to understand the particularities of these tumors and their prognostic relevance.

CUP-syndrome: Inguinal high grade serous ovarian carcinoma lymph node metastases with unknown primary origin – a case report and literature review

Objective

High-grade serous ovarian carcinoma (HGSC) often presents lymph node involvement. According to the paths of lymphatic drainage, the most common site of nodal metastasis is in the aortic area. However, pelvic lymph nodes are also involved and inguinal metastases are less frequent.

Methods

Our report concerns the case of a 78-year-old woman with an inguinal lymph node relapse of HGSC, with the prior positivity of a right inguinal lymph node, after the primary surgery. Ovaries and tubes were negative on histological examination. A comprehensive search of the literature published from January 2000 to October 2021 was conducted on PubMed and Scopus. The papers were selected following the PRISMA guidelines. Nine retrospective studies were evaluated.

Results

Overall, 67 studies were included in the initial search. Applying the screening criteria, 36 articles were considered eligible for full-text reading of which, after applying the exclusion criteria, 9 studies were selected for the final analysis and included in the systematic review. No studies were included for a quantitative analysis. We divided the results according to the relapse location: loco-regional, abdominal, and extra-abdominal recurrence.

Conclusions

Inguinal node metastasis is a rare but not unusual occurrence in HGSC. A reasonable level of suspicion should be maintained in patients with inguinal adenopathy and high CA125 values, especially in women with a history of gynecologic surgery, even in the absence of negative imaging for an ovarian origin.

Primary Fallopian Tube Carcinoma Presenting with a Massive Inguinal Tumor: A Case Report and Literature Review

Primary fallopian tube carcinoma (PFTC) has characteristics similar to those of ovarian carcinoma. The typical course of PFTC metastasis includes peritoneal dissemination and pelvic and paraaortic lymph node metastasis, while inguinal lymph node metastasis is rare. Moreover, the initial presentation of PFTC with an inguinal tumor is extremely rare. A 77-year-old postmenopausal woman presented with a massive 12-cm inguinal subcutaneous tumor. After tumor resection, histopathological and immunohistochemical analysis showed that the tumor was a high-grade serous carcinoma of gynecological origin. Subsequent surgery for total hysterectomy with bilateral salpingo-oophorectomy revealed that the tumor developed in the fallopian tube. She received adjuvant chemotherapy with carboplatin and paclitaxel, followed by maintenance therapy with niraparib. There has been no recurrence or metastasis 9 months after the second surgery. We reviewed the literature for cases of PFTC and ovarian carcinoma that initially presented with an inguinal tumor. In compliance with the Preferred Reporting Items for Systematic Reviews guidelines, a systematic literature search was performed through 31 January 2022 using the PubMed and Google scholar databases and identified 14 cases. In half of them, it was difficult to identify the primary site using preoperative imaging modalities. Disease recurrence occurred in two cases; thus, the prognosis of this type of PFTC appears to be good.

Incidence and prognostic significance of inguinal lymph node metastasis in women with newly diagnosed epithelial ovarian cancer

OBJECTIVE(S)

To assess incidence and oncologic outcomes in women with advanced epithelial ovarian cancer (EOC) with inguinal lymph node metastasis (ILNM) at diagnosis.

METHODS

An IRB-approved, retrospective single-institution cohort study was performed in women with stage III/IV EOC from 2009 to 2017. Patients with inguinal lymphadenopathy (defined as >1 cm in short axis) clinically or radiographically were identified. The impact of ILNM on progression-free survival (PFS) and overall survival (OS) were assessed.

RESULTS

Of the 562 women with advanced EOC, 18 (3.2%) had ILNM at diagnosis, accounting for 25.7% of all patients with stage IVB disease (n = 70). Five patients (27.7%) had a known genetic predisposition for EOC, including BRCA1 (11.1%, n = 2), BRCA2 (11.1%, n = 2) and BRIP1 (5.6%, n = 1). The majority of patients underwent optimal primary cytoreductive surgery (CRS), including debulking of inguinal nodal metastasis (83.3%, n = 15), with 50% (n = 9) having no gross residual disease after surgery. There was no difference in PFS (19.9 vs. 19.9 vs. 17.2 months, p = 0.84) or OS (137.2 vs. 52.9 vs. 67.6 months, p = 0.29) in women with stage III/IV with ILNM, stage III/IV without ILNM, and stage IVB disease without ILNM, respectively. Progression-free survival was improved in women with ILNM who underwent an optimal resection to no macroscopic disease vs. non-optimal resection (27.4 vs. 14.3 months, p = 0.019). Median overall survival at the time of analysis did not reach statistical significance (137.2 vs. 57.3 months, p = 0.24).

CONCLUSION(S)

In this retrospective cohort study, 3.2% of women with advanced EOC presented with ILNM at diagnosis. Although ILNM did not portend worse clinical outcomes compared to all Stage III/IV and Stage IVB patients, respectively, resection to no gross residual disease was associated with improved PFS.

Axillary lymph-node metastases as the primary presentation of high-grade serous ovarian carcinoma: A case report

We reported a female presented with an initial diagnosis of metastatic axillary lymph-node carcinoma that comprehensive assessments revealed a definitive diagnosis of high-grade serous ovarian carcinoma as the primary tumor.

Localization of distant metastases defines prognosis and treatment efficacy in patients with FIGO stage IV ovarian cancer

BACKGROUND

Patients with ovarian cancer who are diagnosed with Federation of Gynecology and Obstetrics (FIGO) stage IV disease are a highly heterogeneous group with possible survival differences. The FIGO staging system was therefore updated in 2014.

OBJECTIVE

To evaluate the 2014 changes to FIGO stage IV ovarian cancer on overall survival.

METHODS

We identified all patients diagnosed with FIGO stage IV disease between January 2008 and December 2015 from the Netherlands Cancer Registry. We analyzed the prognostic effect of FIGO IVa versus IVb. In addition, patients with extra-abdominal lymph node involvement as the only site of distant disease were analyzed separately. Overall survival was analyzed by Kaplan-Meier curves and multivariable Cox regression models.

RESULTS

We identified 2436 FIGO IV patients, of whom 35% were diagnosed with FIGO IVa disease. Five-year overall survival of FIGO IVa and IVb patients (including those with no or limited therapy) was 8.9% and 13.0%, respectively (p=0.51). Patients with only extra-abdominal lymph node involvement had a significant better overall survival than all other FIGO IV patients (5-year overall survival 25.9%, hazard ratio 0.77 [95% CI 0.62 to 0.95]).

CONCLUSION

Our study shows that the FIGO IV sub-classification into FIGO IVa and IVB does not provide additional prognostic information. Patients with extra-abdominal lymph node metastases as the only site of FIGO IV disease, however, have a better prognosis than all other FIGO IV patients. These results warrant a critical appraisal of the current FIGO IV sub-classification.

Ovarian cancer initially presenting with supra-clavicular lymph node metastasis: A case report

Supra-clavicular lymph node metastasis from ovarian cancer is rare. The present study reports the unique case of a 43-years-old patient who initially presented with left supra-clavicular lymph node metastasis, and was nulliparous. According to fine-needle aspiration cytology of the metastatic left supra-clavicular lymph nodes and 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (PET/CT) scan, the patient was diagnosed with poorly differentiated serous carcinoma of ovarian cancer, stage IV. Following two cycles of platinum-based chemotherapy, PET/CT showed that the patient had achieved a complete response. Next, cytoreductive surgery was performed and the postoperative histological findings showed that the patient had achieved a complete pathological response. According to NCCN Clinical Practice Guidelines in Oncology, the patient was stage IV and four cycles of chemotherapy were provided, with no recurrence observed during 3 years of follow-up. This case indicates that patients who initially present with distant metastatic lymph nodes and are nulliparous might have a better prognosis and avoid overtreatment.

Pegylated liposomal‑paclitaxel induces ovarian cancer cell apoptosis via TNF‑induced ERK/AKT signaling pathway

Ovarian cancer is one of the most common gynecological types of cancer and is characterized by a relatively high incidence and high mortality rate. Evidence has demonstrated that paclitaxel (PTX) is an effective therapeutic treatment for human ovarian cancer. In the present study, the inhibitory effects of pegylated liposomal (PL)-PTX on the growth of ovarian cancer cells were investigated in vitro; a CAOV-3-bearing mouse model was established to investigate the in vivo effects of PL-PTX on ovarian tumor growth. In the present study, the underlying mechanism of tumor necrosis factor (TNF)-induced inhibition of extracellular signal-regulated kinase (ERK)/protein kinase B (AKT) signaling pathway mediated by PL-PTX was analyzed within ovarian cancer cells. The results of the present study revealed that PL-PTX significantly inhibited the growth and aggressiveness of ovarian cancer cells in vitro and in vivo and apoptotic ability increased upon administration of PL-PTX. The expression levels of caspase-3/9 were significantly upregulated within PL-PTX-treated ovarian cancer cells. The expression and phosphorylation levels of ERK and AKT were markedly increased in response to PL-PTX treatment. In addition, the inhibitory effects of PL-PTX on ovarian cancer cells were eliminated by neutralizing antibodies against TNF. The observations of the present study revealed that PL-PTX induced ovarian cell apoptosis via the TNF-dependent pathway, which was significantly inhibited with the employment of antibodies against TNF. In vivo analysis demonstrated that PL-PTX treatment significantly inhibited ovarian tumor growth and prolonged the survival of tumor bearing mice. In conclusion, the findings of the present study have provided an insight into the potential mechanism of PL-PTX-induced apoptosis of ovarian cancer cells. As PL-PTX has been reported to induce ovarian tumor cell apoptosis via the TNF-induced ERK/AKT signaling pathway, PL-PTX may serve as an efficient anticancer drug for the treatment of ovarian cancer.

Should epithelial ovarian carcinoma metastatic to the inguinal lymph nodes be assigned stage IVB?

OBJECTIVE

According to the revised FIGO staging system women with ovarian carcinoma and inguinal lymph node (LN) metastases, formerly stage III, are now considered stage IVB. In this study we compare their survival to that of women with stage III and stage IV disease.

METHODS

Women diagnosed with epithelial ovarian carcinoma were drawn from the Surveillance, Epidemiology, and End Results database (2004-2013). Four groups were formed: group 1 (stage IV due to positive inguinal nodes), group 2 (stage III with positive para-aortic/pelvic nodes), group 3 (stage IV with positive distant nodes) and group 4 (stage IV with distant metastases). Overall (OS) and cancer-specific survival (CSS) rates were evaluated with the Kaplan-Meier method. The log-rank test and Cox-hazard models were employed for univariate and multivariate survival analysis.

RESULTS

A total of 11,152 women were identified. Five-year OS for women in group 1 (n=151) was 46.3% compared to 44.9% for those in group 2 (n=4,403) (p=0.4), 32.9% in group 3 (n=642) (p<0.001) and 25.3% in group 4 (n=5,956) (p<0.001). After controlling for age, race and histology, group 1 had improved overall and cancer-specific mortality compared to groups 3 and 4 but not group 2.

CONCLUSIONS

Ovarian cancer patients with stage IV ovarian cancer due solely to inguinal nodal metastases have similar survival as those with pelvic/para-aortic nodal involvement and improved survival compared to those harboring distant metastases. Our findings do not support the reclassification of these patients as stage IVB.

Blueberries inhibit cyclooxygenase-1 and cyclooxygenase-2 activity in human epithelial ovarian cancer

Ovarian cancer (OC) is the sixth and eighth leading cause of cancer mortality among women in developed and developing countries, respectively. Medical therapy is the main method for the treatment of OC. However, drug toxicity and the marked side effects of chemotherapy limit the usage and therapeutic results of the treatments. Therefore, the identification of multi-target agents with few side effects and high effectiveness is required. Traditional Chinese medicine has been used clinically to treat various types of cancer for thousands of years and is considered to possess multiple components and agents, which exert efficient therapeutic functions with few side effects. Although blueberries have previously been used to treat various types of cancer, the effect on OC and precise molecular mechanism of function of the fruit remains unknown. Cyclooxygenase (COX)-1 and COX-2 have been reported to be the biomarkers of OC. Blueberries may affect the progression of OC by affecting COX levels. To investigate the issue, COX-1 and COX-2 were overexpressed or silenced in ovarian cancer SKOV3 cells. The effect of blueberries on SKOV3 cell viability was determined by an MTT assay. Furthermore, a mouse model for OC was established. The results indicated that blueberries inhibited the proliferation of OC cells by downregulating the levels of COX-1 and COX-2. Blueberry (400 mg daily) consumption reduced tumor size significantly in mice with OC compared with the control without blueberry treatment (P<0.05). The results suggest that blueberries should be used to develop a potential non-pharmaceutical therapy for OC.

Ovarian cancer with metastatic inguinal lymphadenopathy: A case series and literature review

BACKGROUND

Ovarian cancer is the 4th commonest cancer among Egyptian women. It can spread through 3 different lymphatic pathways to para-aortic/paracaval lymph nodes, to pelvic lymph nodes and only occasionally through the round ligament of the uterus to the inguinal nodes. These rare cases are staged IVb on FIGO system.

PRESENTATION

We present a series of 4 cases of ovarian cancer metastasizing to inguinal nodes. The literature review revealed only 17 published similar cases. Management controversies as well as prognosis are discussed in our study.

CONCLUSION

Inguinal metastasis from ovarian cancer seems more frequent than previously thought. Examination of inguinal region should be mandatory in all cases diagnosed with ovarian cancer.

Appropriate Recommendations for Surgical Debulking in Stage IV Ovarian Cancer

OPINION STATEMENT

Epithelial ovarian cancer continues to be the leading cause of death due to gynecologic malignancy, and it is the fifth leading cause of cancer death in women in the USA and seventh worldwide. In most women with ovarian cancer, the disease is diagnosed at an advanced stage and primary cytoreductive surgery is considered standard of care. Traditionally, the gynecologic oncology literature supports the dictum that aggressive radical debulking to reduce intra-abdominal tumor burden to minimal or less than 1 cm of disease has significant impact on overall survival. However, the European Organization for Research and Treatment of Cancer (EORTC) trial found that survival after neoadjuvant followed by interval debulking surgery was similar to survival with the standard approach of primary surgery followed by chemotherapy. Many gynecologic oncologists have now adopted neoadjuvant chemotherapy for the treatment of stage IV ovarian cancer given the complex nature of this disease. Currently, there are conflicting results in the literature with regards to neoadjuvant chemotherapy versus primary debulking for stage IV ovarian cancer. While there is evidence that neoadjuvant treatment is not inferior to primary debulking, the literature also supports that maximizing debulking efforts with radical surgery can provide a survival benefit in patients with stage IV ovarian carcinoma.

Presentation and Management of Inguinal Lymphadenopathy in Ovarian Cancer

The symptoms in ovarian cancer are often missed leading to dubious diagnosis and staging. Inguinal lymphadenopathy (ILAP) is reported to be rare and occurring via lymphatic or hematogenous route. The paucity of studies on ILAP in ovarian cancer indicates a scope of refining its staging and management. The present study aims to document the presentation and management of ILAP in ovarian cancer, which may also reflect its incidence and mechanism of spread. All patients of ovarian cancer with inguinal lymphadenopathy presenting to our institute from 1 January 2015 to 31 December 2015 were included. All clinical, treatment, and pathological details were analyzed. Seven patients of ovarian cancer presented with ILAP. The mean age and BMI were 53.29 +/- 8.38 years and 26.23 +/- 3.03 kg/m². Presentation varied from advanced disease (adnexal, omental, peritoneal, and nodal) to isolated ILAP even without adnexal mass (n = 4). Mean CA 125 was 229.64 +/- 322 (20-924) and ovarian primary was confirmed on microscopy or immunohistochemistry. Six patients underwent surgery with (n = 4) or without neoadjuvant chemotherapy (n = 2). Complete cytoreduction could be achieved in all patients with acceptable operative and perioperative outcomes. Peritoneal surface spread, along hernia track to the groin, was seen in two patients. Histopathology showed advanced disease, isolated ILAP and no residual disease in 3, 2, and 1 patient, respectively. ILAP has diverse clinical presentation in ovarian cancers and is not that uncommon. ILAP may also occur by peritoneal surface spread and shows good results with cytoreductive surgery and chemotherapy.