Outcome and late effects of patients treated for childhood vaginal malignant germ cell tumors.

PURPOSE: Vaginal malignant germ cell tumors (MGCT) are rare, occurring in children less than 2 years old and raise the question of the optimal local treatment. METHODS: We included children treated for vaginal MGCT according to the French TGM-95/2013 regimen. Patients were classified as standard risk (SR: localized disease and alpha-fetoprotein (AFP) < 10,000 ng/mL) or high risk (HiR: metastatic and/or AFP > 10,000 ng/mL) and were treated, respectively, with three to five VBP (vinblastine-bleomycin-cisplatin) or four to six VIP (etoposide-ifosfamide-cisplatin), followed by conservative surgery and/or brachytherapy in case of post-chemotherapy residuum. RESULTS: Fourteen patients were included (median age = 12 months), of which six (43%) were classified as HiR. AFP levels were normalized after first-line chemotherapy in all cases but one. A vaginal post-chemotherapy residuum (median size = 8 mm, range: 1-24 mm) was observed in 13/14 patients, treated by complete resection in seven of 13 (viable cells in three of seven), incomplete resection in four of 13 (viable cells in two of four), with adjuvant brachytherapy in two of 13, and exclusive brachytherapy in two of 13 (viable cells in one of six). Among the six patients with viable disease, four patients received adjuvant chemotherapy. One patient (SR) experienced immediate postoperative relapse despite presenting no viable residual cells and was treated with four VIP cycles and brachytherapy. At last follow-up (median = 4.6 years, range: 0.5-16), all patients were alive in complete remission. Five patients suffered from vaginal sequelae with synechiae and/or stenosis (of whom four had undergone brachytherapy). CONCLUSION: Childhood vaginal MGCTs show a highly favorable prognosis with risk-adapted chemotherapy and local treatment of post-chemotherapy residuum (preferably by conservative surgery with partial vaginectomy). Brachytherapy could be an alternative when conservative surgery is not deemed possible or in cases of incomplete resection with residual viable cells.

Endometrioid adenocarcinoma of the rectovaginal septum: A case report. / é˜´é“ç›´è‚ éš”å­å®«å† è†œæ ·è ºç™Œ1例.

Primary endometrioid adenocarcinoma of the rectovaginal septum is rare. Its pathogenesis is not clear and there is no standard treatment. One patient with endometrioid adenocarcinoma of the rectovaginal septum arising from deep infiltrative endometriosis was admitted to Qingdao Municipal Hospital. The patient presented with incessant menstruation and abdominal distension. She had bilateral ovarian endometriotic cystectomy 6 years ago. Imaging findings suggested a pelvic mass which might invade the rectovaginal septum. Pathological results of primary surgery confirmed endometrioid carcinoma of the pelvic mass arising from the rectovaginal septum. Then she had a comprehensive staged surgery. Postoperative chemotherapy was given 6 times. No recurrence or metastasis was found during the 2-year follow-up. The possibility of deep infiltrating endometriosis and its malignant transformation should be considered in the differential diagnosis of a new extragonadal pelvic lesion in a patient with a history of endometriosis, which would avoid misdiagnosis and missed diagnosis.

Treatment patterns and outcomes of patients with locally advanced vulvar or vaginal cancer in British Columbia.

OBJECTIVE: As vulvar and vaginal cancers are rare malignancies, treatment is extrapolated from the cervical cancer field. Further studies are necessary to evaluate whether surgery, radiotherapy (RT), or combined chemoRT is most beneficial. METHODS: A retrospective chart review was conducted on patients diagnosed with vulvar or vaginal cancer in 2000-2017. Descriptive statistics was used to summarize demographic factors. Kaplan-Meier curves, log-rank tests, multivariate analysis with hazard ratios (HR) were conducted to compare survival outcomes, including overall survival (OS), disease-free survival, and cancer-specific survival, between surgery, RT, and chemoRT. RESULTS: This study included 688 patients with either vulvar (n = 560, 81%) or vaginal cancer (n = 128, 19%). Median age of diagnosis was 68 (27-98) years. In multivariate survival analysis, vulvar cancer was associated with more likelihood of death (HR: 1.50, p = 0.042) compared to vaginal cancer. For patients who received definitive RT, median OS was 63.8 months with concurrent chemotherapy vs. 46.3 months without for vulvar cancer (p = 0.75); for vaginal, median OS 100.4 with chemotherapy vs. 66.6 months without (p = 0.31). For vulvar cancer patients who received RT (n = 224), adding chemotherapy (n = 100) was not associated with statistically significant OS improvement (HR: 0.989, p = 0.957). Similarly, vaginal cancer patients who received chemoRT (n = 51) did not have significant OS benefit (HR: 0.720, p = 0.331) over patients who received RT (n = 49). CONCLUSIONS: In this retrospective study, chemoRT was not associated with significant improvements in survival compared to RT in vulvar or vaginal cancer. Future studies investigating novel therapies to treat these cancers are needed to improve patient outcomes.

Vaginal Metastases of Wilms' Tumor in a Pediatric Patient: A Rare Case.

BACKGROUND: Wilms' tumor is the second most common pediatric abdominal cancer; however, it rarely involves the female reproductive tract. There are few cases reported in the literature describing uterine, ovarian, cervical, and vaginal involvement. CASE: We report the case of a 7-year-old girl presenting with a large renal mass with retroperitoneal nodal and lung metastases; she was diagnosed with stage 4 favorable histology Wilms' tumor. She was treated with surgery, chemotherapy, and radiation. She presented with vaginal bleeding 10 months after completing treatment; biopsy of a vaginal mass confirmed recurrence, and this was sent for molecular profiling, which did not identify an inherited cancer predisposition or targetable mutation. She was again treated with chemotherapy; examination redemonstrated a small vaginal mass, but re-biopsy of the lesion was negative for malignancy. Due to high risk of local relapse, ongoing chemotherapy and pelvic radiation ensued. End-of-treatment imaging and vaginoscopy showed no residual disease. SUMMARY AND CONCLUSION: Vaginal metastases of Wilms' tumor are very rare; this is the second reported case in the literature. Pediatric clinicians should have a strong suspicion for vaginal metastases in cancer patients presenting with vaginal bleeding, especially when their pubertal development does not suggest that bleeding would be secondary to menarche. Long-term gynecologic care for these patients is paramount to reduce morbidity from chemotherapy and pelvic radiation. Fertility preservation counselling should be made early, through referral to a specialist.

Vaginal cancer treated with curative radiotherapy with or without concomitant chemotherapy: oncologic outcomes and prognostic factors.

BACKGROUND: Vaginal cancer is a rare disease for which prospective randomized trials do not exist. We aimed to assess survival outcomes, patterns of recurrence, prognostic factors, and toxicity in the curative treatment using image-guided radiotherapy (RT). METHODS: In this retrospective review, we identified 53 patients who were treated at a single center with external beam radiotherapy and brachytherapy with or without concomitant chemotherapy from 2000 to 2021. RESULTS: With a median follow-up of 64.5 months, the Kaplan-Meier 2-, 5-, and 7-year overall survival (OS) was found to be 74.8%, 62.8%, and 58.9%, respectively. Local and distant control were 67.8%, 65.0%, and 65.0% and 74.4%, 62.6%, and 62.6% at 2, 5, and 7 years, respectively. In univariate Cox proportional hazards ratio analysis, OS was significantly correlated to FIGO stage (hazard ratio [HR] 1.78, p = 0.042), postoperative RT (HR 0.41, p = 0.044), and concomitant chemotherapy (HR 0.31, p = 0.009). Local control rates were superior when an equivalent dose in 2-Gy fractions (EQD2) of ⩾65 Gy was delivered (HR 0.216, p = 0.028) and with the use of concurrent chemotherapy (HR 0.248, p = 0.011). Not surprisingly, local control was inferior for patients with a higher TNM stage (HR 3.303, p = 0.027). Minimal toxicity was observed with no patients having documentation of high-grade toxicity (CTCAE grade 3+). CONCLUSION: In treatment of vaginal cancer, high-dose RT in combination with brachytherapy is well tolerated and results in effective local control rates, which significantly improve with an EQD2(α/ß=10) ⩾65 Gy. Multivariate analyses revealed concomitant chemotherapy was a positive prognostic factor for overall and progression-free survival.

Buccal Mucosa Vaginoplasty Through an Anterior Sagittal Transrectal Approach (ASTRA) for Management of Yolk Sac Tumor in a 3-Year-Old Girl.

Vaginal yolk sac tumors are rare pediatric malignant tumors and the most common form of vaginal germ-cell tumors in children. They are almost exclusively found in females under 3 years of age. Treatment involves local excision either with or without chemotherapy. Herein, we describe a case of a 3-year-old girl with vaginal Yolk sac tumor, who underwent buccal mucosa vaginoplasty through an anterior sagittal transrectal approach , as an effective oncological procedure, with preservation of reproductive function.

Primary vaginal endodermal sinus tumor in infants and children: experience from a tertiary center.

BACKGROUND: The objective of the study was to analyze the clinical features, treatment, and outcomes of primary vaginal endodermal sinus tumor (EST) in infants and children treated in a tertiary center. METHODS: Clinical data of patients with pathologically confirmed primary vaginal EST in our hospital from January 1997 to December 2017 were retrospectively reviewed and analyzed. RESULTS: A total of 21 patients were included in this study. The median age at diagnosis was 11 months (range, 4-44 months). The most common manifestations were abnormal vaginal bleeding, and a polypoid mass protruding from the vagina. Chemotherapy based on PEB (cisplatin, etoposide, bleomycin) regimen was given, and serum alpha-fetoprotein (AFP) levels dropped to normal levels after 2 to 4 cycles of chemotherapy (median, 2 cycles). After 3 to 13 cycles of chemotherapy, with a median of 5 cycles, 20 patients achieved complete remission (95.2%). The median follow-up time was 80 months (range, 4-281months). At the time of the last follow-up, 19 cases were alive without disease, and the survival rate was 90.5%. CONCLUSION: Vaginal EST is a very rare malignant germ cell tumor and is sensitive to chemotherapy. Conservative surgery combined with PEB chemotherapy is an effective way of treatment. Serum AFP and imaging examinations can monitor the treatment response and recurrence.

Efficacy and safety of photodynamic therapy mediatied by 5-aminolevulinic acid for the treatment of vaginal high-grade intraepithelial lesions.

BACKGROUND: Vaginal high-grade squamous intraepithelial lesion (HSIL) (vaginal intraepithelial neoplasia [VAIN] grade 2-3) is clinically, a precancerous lesion condition with an estimated progression rate of 10%-20%. Therefore, treatment is recommended. Because traditional treatments have limited effects, high expense and complications, here we evaluated the efficacy and safety of topical 5-aminolevulinic acid (ALA)-based photodynamic therapy (PDT). METHODS: This study consisted of 56 female patients diagnosed with vaginal HSIL. A 20% 5-ALA jelly formation was topically applied to the vaginal wall, followed by 635 nm PDT at 7-14 days intervals. Cytology, human papillomavirus (HPV) genotyping, colposcopy, and pathology were assessed after treatment. RESULTS: Among the 56 patients in our study, 47 (83.9%) had VAIN 2 and 9 (16.1%) had VAIN 3. 35 patients underwent three courses of PDT treatment, 19 experienced six courses, and two experienced nine courses. The total pathological regression rate was 87.5%, and the HPV clearance rate during the 6-month follow-up was 41.9%. Lesions located in the vaginal stump after hysterectomy seem to be difficult to treat. 9%(4/44) and 23%(7/30) patients had recurrent disease during the 6-month and 1-year follow-up time point. The most common adverse event was increased vaginal discharge, other side effects include abdominal pain, vulvar pruritus, and vaginal bleeding. No severe adverse effect was observed during the treatment. CONCLUSION: Photodynamic therapy mediatied by 5-aminolevulinic acid is an effective and safe treatment for vaginal HSIL with minimal side effects.

Diagnostic and Therapeutic Approach in a Metastatic Vaginal Adenocarcinoma: A Case Report.

Background: Vaginal adenocarcinomas (VAC) are most often reported after intrauterine exposition to diethylstilbestrol (DES). Rarely, VACs are reported as a malignant transformation of vaginal adenosis or endometriosis, in the context of chromosomal abnormalities or malformations of the uterus or the vagina. VACs without DES exposition have a poor prognosis and a significantly worse outcome compared to vaginal squamous cell carcinomas or DES-associated VACs. Objective: Here, we report the case of a primarily metastatic VAC, treated successfully with different lines of chemo-, antiangiogenic, antibody, and immunotherapy. Case: The 49-year-old patient presented in 5/2018 with a primarily pulmonary metastatic VAC. Significant tumor reduction was seen after six cycles of carboplatin AUC5/paclitaxel 175 mg/m²/bevacizumab 15 mg/kg q3w. Bevacizumab maintenance therapy and later cisplatin mono 50 mg/m² q2w led to local and distant tumor progression. To identify a potential targeted therapy, new tumor biopsies were obtained. Immunohistochemistry revealed ERBB2 expression, and paclitaxel 80 mg/m² weekly plus trastuzumab 4 mg/m² respectively 2 mg/m² q3w was administered. Due to local and pulmonal tumor progression after 6 months and persistent ERBB2 positivity, the therapy was adjusted to trastuzumab emtansine (T-DM1) 3.6 mg/kg q3w; however, the patient remained locally progressive after three cycles of T-DM1 and additionally showed a new bone metastasis. The new tumor biopsies revealed a combined positive score (CPS) of 2 regarding PD-L1, and pembrolizumab 200 mg q3w was initiated. The bone metastasis was radiated and treated with denosumab 120 mg q4w. Extreme tumor regression followed by stable disease was maintained for 9 months. Due to a slow locoregional progress only with new inguinal lymph node and pararectal lymph node metastases, a new tumor biopsy was taken. Molecular profiling showed an ARID1A mutation, a mutational burden of 5.1 mutations per megabase, and no genfusions. Based on these findings, therapy with PD-L1 antibodies, PD-1 antibodies, gemcitabine, or dasatinib was suggested. Therefore, administration of pembrolizumab was continued and local radiation therapy was performed. This led to a decrease in local tumor manifestations and a stable systemic disease. Conclusion: Our case demonstrates the diagnostic and therapeutic approach in a patient with primary metastatic vaginal adenocarcinoma. By tumorgenetic profiling, different lines of systemic therapy, namely, antiangiogenic therapy, monoclonal antibody therapy, immunotherapy, and local radiation therapy, were identified and successfully administered.

Primary vaginal malignant melanoma: A rare case report of successful treatment with nivolumab.

RATIONALE: Primary vaginal malignant melanoma is a sporadic and very aggressive tumor that is treated through surgery or radiotherapy combined with chemotherapy. Since most cases are diagnosed at an advanced stage, the operation range is extensive, the quality of life is poor, and the prognosis is gloomy. PATIENT CONCERNS: A 58-year-old woman presented irregular water-like leukorrhea for 1 month after 6 years of menopause. Positron emission tomography-computed tomography revealed a 3.1 × 2.6 × 3.2 mass on the middle and lower part of the right vaginal wall. A gynecological examination revealed a 2 to 3 cm exophytic black mass in the lower-right part of the vaginal orifice. This mass was 2 cm from the urethral orifice. Furthermore, the mucosa of the anterior inferior vaginal wall had blackened and thickened, and there were some scattered black dots at the medial labia minora. DIAGNOSIS: Due to the patient's symptoms with radiographic findings, the postmenopausal woman was diagnosed with primary vaginal malignant melanoma. INTERVENTIONS: Surgery was done to remove the mass. The patient also underwent inguinal lymph node dissection, received immunotherapy, and was treated with nivolumab. OUTCOMES: After a 6-month follow-up period, the patient underwent a routine gynecological examination with negative radiological results. Moreover, no local recurrence or distant metastases were found. LESSONS: This patient showed a good response to immunotherapy. With this treatment method, the prognosis is better for advanced-stage women, especially those who cannot endure the surgery. Local lesion resection and inguinal lymph node dissection combined with immunotherapy are recommended. The case reported here may help treat similar clinical cases.

Pembrolizumab in vaginal and vulvar squamous cell carcinoma: a case series from a phase II basket trial.

Vaginal and vulvar squamous cell carcinoma (SCC) are rare tumors that can be challenging to treat in the recurrent or metastatic setting. We present a case series of patients with vaginal or vulvar SCC who were treated with single-agent pembrolizumab as part of a phase II basket clinical trial to evaluate efficacy and safety. Two cases of recurrent and metastatic vaginal SCC, with multiple prior lines of systemic chemotherapy and radiation, received pembrolizumab. One patient had significant reduction (81%) in target tumor lesions prior to treatment discontinuation at cycle 10 following confirmed progression of disease with new metastatic lesions (stable disease by irRECIST criteria). In contrast, the other patient with vaginal SCC discontinued treatment after cycle 3 due to disease progression. Both patients had PD-L1 positive vaginal tumors and tolerated treatment well. One case of recurrent vulvar SCC with multiple surgical resections and prior progression on systemic carboplatin had a 30% reduction in her target tumor lesions following pembrolizumab treatment with a PD-L1 positive tumor. Treatment was discontinued for grade 3 mucositis after cycle 5. Pembrolizumab may provide some clinical benefit to some patients with vaginal or vulvar SCC and is overall safe to utilize in this population. Future studies are needed to evaluate the efficacy of pembrolizumab in these rare tumor types and to identify predictive biomarkers of response.

Clinical Characteristics and Treatment Response With Checkpoint Inhibitors in Malignant Melanoma of the Vulva and Vagina.

OBJECTIVES: The aims of the study were to assess the clinical and histopathological characteristics of a comprehensive cohort of women with vulvovaginal melanoma (VVM) treated at our institution and to study the treatment response of checkpoint inhibitors in this patient cohort. MATERIALS AND METHODS: This is a retrospective study of women with invasive VVM treated at the Princess Margaret Cancer Centre in Toronto, Ontario, Canada, over a period of 15 years. Clinical and histopathological characteristics, treatment, as well as treatment-related outcome were analyzed in 32 women. Treatment response was evaluated retrospectively using the "response criteria for use in trials testing immunotherapeutics" (iRECIST). The objective response rate was defined as the proportion of patients with complete or partial response based on the best overall response. RESULTS: At a median follow-up of 37.8 months (5.8-110.4), 26 women (81.3%) had disease progression and 16 (50%) died. Thirteen patients with locally unresectable or metastatic melanoma were treated with immune checkpoint inhibitors. Ten additional cases were identified from previously published reports. The best objective response rate for immune checkpoint inhibitors was 30.4% (95% CI = 11.6%-49.2%) and the clinical benefit rate was 52.2% (95% CI = 31.8%-72.6%). The clinical benefit rate was significantly better for programmed cell death protein 1 inhibitors (or a combination) compared with ipilimumab alone (Fisher exact, p = .023). Grade 3/4 adverse events were observed in 3 (13.0%) of the 23 patients. CONCLUSIONS: Women with VVM constitute a high-risk group with poor overall prognosis. Immune checkpoint inhibitors are effective in the treatment of metastatic melanoma in this patient cohort.

Vaginal Yolk Sac Tumor: A Case Series and Review of the Literature.

OBJECTIVE: To report diagnosis, treatment, and outcomes of vaginal yolk sac tumor (YST) cases at a single institution and review literature on vaginal YST to outline advancements in diagnosis, treatment, and survival. DESIGN: Retrospective chart review of female patients less than 21 years of age with pathologic diagnosis of vaginal YST treated at a large children's hospital, and summary of a 100-year review of the literature on vaginal yolk sac tumor. SETTING: Children's Healthcare of Atlanta, a tertiary center in Atlanta, GA. PARTICIPANTS: Female patients less than 21 years of age diagnosed with vaginal YST. RESULTS: Two cases of vaginal YST at our institution are outlined. Both patients presented within the first 2 years of life with vaginal bleeding and were treated successfully with chemotherapy alone. After review of the literature, 137 cases of vaginal YST were found. The mean age at diagnosis was 11 months, and all patients presented with vaginal bleeding. Before 2000, more radical treatments were pursued, and 40% resulted in death. Since the year 2000, treatment has shifted toward chemotherapy and more conservative surgical management, with 51% of vaginal YST cases treated with chemotherapy alone with 92% of patients alive at time of publication. CONCLUSION: Our cases contribute to the limited literature demonstrating the efficacy of conservative management of rare cases of vaginal YST with chemotherapy alone. This case series and review of the literature provide mounting evidence that vaginal YST should be in the differential diagnosis in young girls with vaginal tumors, and conservative management of vaginal YST has excellent outcomes.

Imiquimod for vaginal intraepithelial neoplasia 2-3: A systematic review and meta-analysis.

OBJECTIVE: The treatment strategy for vaginal intraepithelial neoplasia (VaIN) 2-3 has not been established. This study aimed to investigate the efficacy of imiquimod in VaIN 2-3. METHODS: Electronic databases (PubMed, EMBASE, ClinicalTrials.gov, and Cochrane Central Register of Controlled Trials) were searched from their inception until October 2019 and articles reporting imiquimod treatment for VaIN 2-3 were extracted. Additionally, the clinical records of women with VaIN 2-3 who had been treated with imiquimod in Shizuoka General Hospital from January 2016 to May 2020 were investigated. The data from the systematic search and the data from our hospital were analyzed, and a pooled complete response (CR) rate and response rate of imiquimod treatment for VaIN 2-3 were estimated. As a subgroup analysis, the CR rates and response rates were compared between women with and without a history of hysterectomy, and the rate ratio was calculated. RESULTS: Five articles described 28 women with VaIN 2-3 who underwent imiquimod treatment, and nine women with VaIN 2-3 were treated with imiquimod in our hospital. The discontinuation of the treatment was required in only one patient of the reported cases. The pooled CR rate and response rate of imiquimod, regardless of a history of hysterectomy, was 0.76 (95% CI, 0.59-0.87) and 0.89 (95% CI, 0.71-0.97), respectively. In the subgroup analysis, the CR rate in patients with hysterectomy was 0.98 (95% CI, 0.11-1.0) and in those without hysterectomy was 0.60 (95% CI, 0.30-0.84), and the rate ratio was 0.83 (95% CI, 0.48-1.19). The pooled response rates with and without a history of hysterectomy were not estimated, and the rate ratio was 0.83 (95% CI, 0.54-1.09). CONCLUSION: Imiquimod can be an effective treatment for vaginal intraepithelial neoplasia 2-3.

A phase III study of transdermal granisetron versus oral ondansetron for women with gynecologic cancers receiving pelvic chemoradiation.

PURPOSE: To compare rates of complete response (no emesis, retching, or rescue antiemetics) in the late phase (days 4-7 post-chemotherapy) of cycle 1 between transdermal granisetron and oral ondansetron in cervical, endometrial, or vaginal cancer survivors undergoing chemoradiation at The University of Texas MD Anderson Cancer Center and LBJ Hospital in Houston, TX. METHODS: In this non-blinded parallel design trial, eligible patients received a granisetron patch replaced every 7 days or 8 mg of ondansetron thrice daily continued for 72 h after chemotherapy completion. Data were collected on medication compliance, episodes of chemotherapy-induced nausea and vomiting (CINV), use of rescue antiemetics, and effects of CINV on quality of life. RESULTS: Seventy-five survivors receiving chemoradiation for cervical (n = 61), endometrial (n = 12), or vaginal (n = 2) cancer were electronically randomized to transdermal granisetron (n = 41) or oral ondansetron (n = 34). In the late phase of cycle 1, the rate of complete response was 49.8% (95% CI, 35.2-64.3%) for transdermal granisetron and 39.7% (95% CI, 24.4-56.1%) for oral ondansetron. The posterior probability that transdermal granisetron achieved a higher success rate in controlling late-onset CINV compared with oral ondansetron was 82%. During the acute phase (day 1 post-chemotherapy) of cycles 2 and 3, transdermal granisetron patients used more rescue antiemetics than oral ondansetron patients (p = 0.006 and p = 0.003, respectively). Otherwise, no between-group differences in CINV events were observed. Medication compliance and the effect of CINV on quality of life were similar between groups. CONCLUSION: Transdermal granisetron was 82% more like to control CINV than oral ondansetron in the late phase of cycle 1 and performed similarly to oral ondansetron in all other cycles. Transdermal granisetron should be considered an option as prophylactic antiemetic therapy for gynecologic cancer survivors undergoing chemoradiation.

Progesterone-responsive vaginal leiomyoma and hyperprogesteronemia due to ovarian luteoma in an older bitch.

BACKGROUND: This is the first report about a vaginal leiomyoma concomitant with an ovarian luteoma in a bitch. CASE PRESENTATION: A 11-year-old intact female Labrador retriever was referred because of anuria, constipation and protrusion of a vaginal mass through the vulvar commissure. The bitch had high serum progesterone concentration (4.94 ng/ml). Because of the possibility of progesterone responsiveness causing further increase of the vaginal mass and since the bitch was a poor surgical candidate a 10 mg/kg aglepristone treatment was started SC on referral day 1. A computerized tomography showed a 12.7 × 6.5 × 8.3 cm mass causing urethral and rectal compression, ureteral dilation and hydronephrosis. A vaginal leiomyoma was diagnosed on histology. As serum progesterone concentration kept increasing despite aglepristone treatment, a 0.02 ng/mL twice daily IM alfaprostol treatment was started on day 18. As neither treatment showed remission of clinical signs or luteolysis, ovariohysterectomy was performed on referral day 35. Multiple corpora lutea were found on both ovaries. On histology a luteoma was diagnosed on the left ovary. P4 levels were undetectable 7 days after surgery. Recovery was uneventful and 12 weeks after surgery tomography showed a reduction of 86.7% of the vaginal mass. The bitch has been in good health and able to urinate without any complication ever since. CONCLUSIONS: This case demonstrates the importance of identifying progesterone related conditions as well as the importance of judiciously using a combined medical and surgical approach.

Palliative treatment with electrochemotherapy in recurrent or metastatic vaginal cancer.

OBJECTIVE: Vaginal metastases are very rare events with a poor prognosis. To improve the quality of life, local treatments should be considered. The aim of this study was to evaluate the role of electrochemotherapy as palliative treatment in vaginal cancer not amenable to standard treatments due to poor performance status, previous treatments, or advanced disease. METHODS: This is a prospective observational study on patients diagnosed with vaginal cancer and treated from January 2017 to December 2018 with palliative electrochemotherapy. We collected data on patients with vaginal cancer treated by electrochemotherapy with the aim of local control. Data regarding electrochemotherapy, hospital stay, adverse events, and patient outcomes were analyzed. Intravenous bleomycin was injected as a bolus in 2-3 min at a dose of 15 000 UI/m2 and electrical pulses started 8 min after chemotherapy. Electrochemotherapy response was defined according to the Response Evaluation Criteria in Solid Tumors. RESULTS: Five patients with vaginal recurrence (two squamous, two melanomas, and one leiomyosarcoma) and one with vaginal metastasis from intestinal adenocarcinoma received one treatment and two patients were re-treated. Imaging reported nodal metastasis (inguinal or pelvic) in two patients, distant metastases in two, and both node and distant metastasis in two patients, respectively. Response Evaluation Criteria in Solid Tumors showed a complete response in one patient, partial response in three patients, stable disease in one patient, and progressive disease in one patient, with an overall response rate of 67% and a clinical benefit rate (complete response, partial response, stable disease) of 83%. Two patients were re-treated and had a new response (partial response and stable disease, respectively). At last follow-up, two patients had died of the disease, two were alive with stable disease, one was alive with progressive disease, and one was alive without disease. Median post-electrochemotherapy overall survival was 12.9 months (range 1.6-26.9) and 1-year overall survival was 66.7%. CONCLUSIONS: This preliminary experience showed a tumor response or stabilization in 83% of patients requiring palliative management for vaginal cancer. Further studies are needed to evaluate treatment outcome in larger and prospective series.

Diffuse large B-cell lymphoma of the vagina in pregnancy.

A 28-year-old primigravida was evaluated for complaints of difficulty urinating and pelvic pain of 6-weeks duration. She denied fever, night sweats, weight loss or fatigue. Pelvic ultrasonography revealed a single fetal pole with cardiac activity and a 7 cm mass in the anterior vagina which encased the urethra. The diagnosis of diffuse large B-cell lymphoma germinal centre type was made on analysis of biopsied pelvic mass. Whole body MRI revealed the disease was limited to the vagina. The patient received six cycles of Rituximab-cyclophosphamide, doxorubicin, vincristine and prednisone with significant improvement in her symptoms. Serial ultrasounds over the subsequent months showed appropriate development of the fetus. Whole body MRI after treatment showed decreased size and decreased signal of the primary pelvic mass compatible with favourable treatment response. Challenges in the management of this rare presentation of lymphoma are discussed.