Perineal alveolar soft part sarcoma treated by laparoscopy-assisted total pelvic exenteration combined with pubic resection

Alveolar Soft Part Sarcoma in the Female Genital Tract: Case Series with Literature Review and SEER Database Analysis

Introduction

Alveolar soft part sarcoma (ASPS) is a rare and distinct subtype of soft tissue sarcoma. This study aims to describe the unique presentation of ASPS in the female genital tract.

Methods

Prognostic factors for cancer-specific overall survival (CSS) were evaluated using multivariate analyses.

Results

In our case series, we identified a novel TFE3-PRCC gene fusion in a 24-year-old unmarried patient with cervical ASPS who underwent fertility-sparing surgery and remained recurrence-free for 41 months. The other two patients underwent radical hysterectomy and bilateral salpingo-oophorectomy. At the time of writing, the two patients had been disease-free for 49 and 71 months, fluorescence in situ hybridization showed break-apart signals for the ASPL-TFE3 gene. Among the 55 cases with available information from the PubMed/Medline database, most presented with localized disease, and at the last follow-up, all patients were alive and 45 patients showed no evidence of disease. The 5-year CSS rate in the female genital tract cohort from SEER database was 86.2%. Multivariate analysis revealed that older age was associated with a 1.042-fold increased risk of cancer-specific mortality (HR=1.042, 95% CI 1.022-1.063, P < 0.001), involvement of soft tissue including the heart was associated with a 4.786-fold higher risk (HR=4.7868, 95% CI 1.681-13.623, P= 0.003), and regional infiltration and distant metastasis were associated with approximately 8.6-fold and 18-fold higher risk of cancer-specific mortality compared to local disease, respectively (HR=8.652, 95% CI 2.529-29.63, P = 0.001; HR=18.366, 95% CI 6.153-54.817, P< 0.001). Patients who underwent radical excision did not show reduced cancer-specific mortality compared to those who underwent local excision (HR=0.492, 95% CI 0.224-1.081, P = 0.078).

Discussion

Previously unrecognized genetic diversity exists in ASPS. Patients with ASPS in the female genital tract have the lowest likelihood of presenting with a distant disease and are associated with a more favorable survival outcome.

Surgical removal of giant pelvic liposarcoma after preoperative transcatheter arterial embolization

Liposarcoma includes tumors with a wide range of malignancies, from mostly benign to malignant. We report a case of a 73 year-old man who was admitted for urination and defecation disorder. Contract computed tomography (CT) revealed a mass of approximately 21 cm occupying the pelvis, bladder, ureter, prostate, and rectum being compressed by the tumor. Since intraoperative mass bleeding was predicted, we embolized the tumor nutrition artery and performed a total pelvic exenteration. Regarding the course of the operation, SSI and pelvic infection were developed after the operation. The patient was discharged 21 days after surgery. Moreover, there is no evidence of local recurrence and distant metastasis at 18 months after surgery. Furthermore, in giant pelvic liposarcoma, it is useful to identify a nutritional artery of a giant tumor by angiography before surgery, and surgical resection can be safely done by performing preoperative transcatheter arterial embolization.

LAPAROSCOPIC PELVIC EVISCERATION IN MALE AND FEMALE PATIENTS

Abstract: treatment of patients with primary and recurrent locally advanced pelvic tumors represents an extremely complex problem of surgical oncology.Aim: to evaluate perioperative and long-term postoperative results of laparoscopic pelvic exenteration technique.Material and methods: in the period from 2011 to 2018, 21 pelvic exenteration was performed with laparoscopic access, (mean age 59.79 ± 8.5), sex distribution: 17 women and 4 men. Nosology distribution: in 6 patients cervical cancer was verified, 7 patients had bladder cancer, 4 patients had rectal cancer, 1 patient had vaginal cancer, 2 patients had recurrence of vaginal cancers after previous uterine extirpation and 1 patient with ovarian neoplasm.Results: the volume of the exenteration was as follows: 9 total, 7 anterior and 5 posterior. In all cases, it was possible to achieve a negative margin of resection line (R0). The duration of the operation, the volume of blood loss, the frequency and nature of intra- and postoperative complications were evaluated.Conclusion: laparoscopic access is accompanied by a smaller amount of blood loss, decrease of frequency of early postoperative complications, contributes to more comfortable postoperative period with early activation, less severe pain syndrome and leads to a reduction in the duration of inpatient treatment.